233923257 has 12 divisors (see below), whose sum is σ = 338206180. Its totient is φ = 155802528.

The previous prime is 233923229. The next prime is 233923267. The reversal of 233923257 is 752329332.

It can be written as a sum of positive squares in 2 ways, for example, as 44475561 + 189447696 = 6669^2 + 13764^2 .

It is not a de Polignac number, because 233923257 - 2²² = 229728953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233923267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1582 + ... + 21687.

Almost surely, 2^233923257 is an apocalyptic number.

It is an amenable number.

233923257 is a deficient number, since it is larger than the sum of its proper divisors (104282923).

233923257 is a wasteful number, since it uses less digits than its factorization.

233923257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24392 (or 24389 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 233923257 is about 15294.5499116515. The cubic root of 233923257 is about 616.1566414838.

The spelling of 233923257 in words is "two hundred thirty-three million, nine hundred twenty-three thousand, two hundred fifty-seven".