233668857 has 16 divisors (see below), whose sum is σ = 317334848. Its totient is φ = 152902080.

The previous prime is 233668849. The next prime is 233668861. The reversal of 233668857 is 758866332.

It is not a de Polignac number, because 233668857 - 2³ = 233668849 is a prime.

It is a super-2 number, since 2×233668857² = 109202269463372898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233667857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111138 + ... + 113220.

It is an arithmetic number, because the mean of its divisors is an integer number (19833428).

Almost surely, 2^233668857 is an apocalyptic number.

It is an amenable number.

233668857 is a deficient number, since it is larger than the sum of its proper divisors (83665991).

233668857 is a wasteful number, since it uses less digits than its factorization.

233668857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760.

The product of its digits is 1451520, while the sum is 48.

The square root of 233668857 is about 15286.2309612278. The cubic root of 233668857 is about 615.9331962539.

It can be divided in two parts, 23366 and 8857, that added together give a palindrome (32223).

The spelling of 233668857 in words is "two hundred thirty-three million, six hundred sixty-eight thousand, eight hundred fifty-seven".