232999857 has 6 divisors (see below), whose sum is σ = 336555362. Its totient is φ = 155333232.

The previous prime is 232999849. The next prime is 232999901. The reversal of 232999857 is 758999232.

It can be written as a sum of positive squares in only one way, i.e., 232532001 + 467856 = 15249^2 + 684^2 .

It is not a de Polignac number, because 232999857 - 2³ = 232999849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232999957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12944428 + ... + 12944445.

Almost surely, 2^232999857 is an apocalyptic number.

It is an amenable number.

232999857 is a deficient number, since it is larger than the sum of its proper divisors (103555505).

232999857 is a wasteful number, since it uses less digits than its factorization.

232999857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25888879 (or 25888876 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 232999857 is about 15264.3328383523. The cubic root of 232999857 is about 615.3448234803.

The spelling of 232999857 in words is "two hundred thirty-two million, nine hundred ninety-nine thousand, eight hundred fifty-seven".