228607361 has 4 divisors (see below), whose sum is σ = 235981824. Its totient is φ = 221232900.

The previous prime is 228607333. The next prime is 228607363. The reversal of 228607361 is 163706822.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 163706822 = 2 ⋅81853411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228607361 is a prime.

It is a super-2 number, since 2×228607361² = 104522651006768642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228607363) 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, 3687185 + ... + 3687246.

It is an arithmetic number, because the mean of its divisors is an integer number (58995456).

Almost surely, 2^228607361 is an apocalyptic number.

It is an amenable number.

228607361 is a deficient number, since it is larger than the sum of its proper divisors (7374463).

228607361 is an equidigital number, since it uses as much as digits as its factorization.

228607361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7374462.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 228607361 is about 15119.7672270442. The cubic root of 228607361 is about 611.4534551609.

The spelling of 228607361 in words is "two hundred twenty-eight million, six hundred seven thousand, three hundred sixty-one".