957826397 has 4 divisors (see below), whose sum is σ = 1044901536. Its totient is φ = 870751260.

The previous prime is 957826381. The next prime is 957826399. The reversal of 957826397 is 793628759.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 957826397 - 2⁴ = 957826381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957826399) 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, 43537553 + ... + 43537574.

It is an arithmetic number, because the mean of its divisors is an integer number (261225384).

Almost surely, 2^957826397 is an apocalyptic number.

It is an amenable number.

957826397 is a deficient number, since it is larger than the sum of its proper divisors (87075139).

957826397 is a wasteful number, since it uses less digits than its factorization.

957826397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87075138.

The product of its digits is 5715360, while the sum is 56.

The square root of 957826397 is about 30948.7705248528. The cubic root of 957826397 is about 985.7397440650.

The spelling of 957826397 in words is "nine hundred fifty-seven million, eight hundred twenty-six thousand, three hundred ninety-seven".