227845489 has 4 divisors (see below), whose sum is σ = 235702260. Its totient is φ = 219988720.

The previous prime is 227845481. The next prime is 227845517. The reversal of 227845489 is 984548722.

227845489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 984548722 = 2 ⋅492274361.

It can be written as a sum of positive squares in 2 ways, for example, as 135839025 + 92006464 = 11655^2 + 9592^2 .

It is a cyclic number.

It is not a de Polignac number, because 227845489 - 2³ = 227845481 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227845481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928342 + ... + 3928399.

It is an arithmetic number, because the mean of its divisors is an integer number (58925565).

Almost surely, 2^227845489 is an apocalyptic number.

227845489 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

227845489 is a deficient number, since it is larger than the sum of its proper divisors (7856771).

227845489 is an equidigital number, since it uses as much as digits as its factorization.

227845489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856770.

The product of its digits is 1290240, while the sum is 49.

The square root of 227845489 is about 15094.5516329568. The cubic root of 227845489 is about 610.7734424502.

The spelling of 227845489 in words is "two hundred twenty-seven million, eight hundred forty-five thousand, four hundred eighty-nine".