227899811 has 4 divisors (see below), whose sum is σ = 228722832. Its totient is φ = 227076792.

The previous prime is 227899799. The next prime is 227899829. The reversal of 227899811 is 118998722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118998722 = 2 ⋅59499361.

It is a cyclic number.

It is not a de Polignac number, because 227899811 - 2¹⁴ = 227883427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227890811) 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, 411095 + ... + 411648.

It is an arithmetic number, because the mean of its divisors is an integer number (57180708).

Almost surely, 2^227899811 is an apocalyptic number.

227899811 is a deficient number, since it is larger than the sum of its proper divisors (823021).

227899811 is an equidigital number, since it uses as much as digits as its factorization.

227899811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823020.

The product of its digits is 145152, while the sum is 47.

The square root of 227899811 is about 15096.3509166951. The cubic root of 227899811 is about 610.8219779711.

The spelling of 227899811 in words is "two hundred twenty-seven million, eight hundred ninety-nine thousand, eight hundred eleven".