957399 has 4 divisors (see below), whose sum is σ = 1276536. Its totient is φ = 638264.

The previous prime is 957361. The next prime is 957403. The reversal of 957399 is 993759.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-957399 is a prime.

It is a super-2 number, since 2×957399² = 1833225690402, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 957399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159564 + ... + 159569.

It is an arithmetic number, because the mean of its divisors is an integer number (319134).

2⁹⁵⁷³⁹⁹ is an apocalyptic number.

957399 is a deficient number, since it is larger than the sum of its proper divisors (319137).

957399 is a wasteful number, since it uses less digits than its factorization.

957399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319136.

The product of its digits is 76545, while the sum is 42.

The square root of 957399 is about 978.4676795889. The cubic root of 957399 is about 98.5593104796.

The spelling of 957399 in words is "nine hundred fifty-seven thousand, three hundred ninety-nine".