864933957 has 12 divisors (see below), whose sum is σ = 1295621600. Its totient is φ = 576622476.

The previous prime is 864933947. The next prime is 864934013. The reversal of 864933957 is 759339468.

864933957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 864933957 - 2⁶ = 864933893 is a prime.

It is a super-2 number, since 2×864933957² = 1496221499943355698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864933917) 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, 1779457 + ... + 1779942.

Almost surely, 2^864933957 is an apocalyptic number.

It is an amenable number.

864933957 is a deficient number, since it is larger than the sum of its proper divisors (430687643).

864933957 is an equidigital number, since it uses as much as digits as its factorization.

864933957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559414 (or 3559402 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 864933957 is about 29409.7595535904. The cubic root of 864933957 is about 952.7836937835.

The spelling of 864933957 in words is "eight hundred sixty-four million, nine hundred thirty-three thousand, nine hundred fifty-seven".