864957 has 8 divisors (see below), whose sum is σ = 1157760. Its totient is φ = 574400.

The previous prime is 864953. The next prime is 864959. The reversal of 864957 is 759468.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 864957 - 2² = 864953 is a prime.

It is a super-2 number, since 2×864957² = 1496301223698, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8⁵ + 6⁵ + 9³ + 4² + 5³ + 7⁷ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 864957.

It is not an unprimeable number, because it can be changed into a prime (864953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844 + ... + 1562.

It is an arithmetic number, because the mean of its divisors is an integer number (144720).

2⁸⁶⁴⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

864957 is a deficient number, since it is larger than the sum of its proper divisors (292803).

864957 is a wasteful number, since it uses less digits than its factorization.

864957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123.

The product of its digits is 60480, while the sum is 39.

The square root of 864957 is about 930.0306446564. The cubic root of 864957 is about 95.2792154853.

The spelling of 864957 in words is "eight hundred sixty-four thousand, nine hundred fifty-seven".