931423457 has 8 divisors (see below), whose sum is σ = 951992640. Its totient is φ = 911025360.

The previous prime is 931423447. The next prime is 931423499. The reversal of 931423457 is 754324139.

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 931423457 - 2⁸ = 931423201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 931423457.

It is not an unprimeable number, because it can be changed into a prime (931423447) 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, 31733 + ... + 53570.

It is an arithmetic number, because the mean of its divisors is an integer number (118999080).

Almost surely, 2^931423457 is an apocalyptic number.

It is an amenable number.

931423457 is a deficient number, since it is larger than the sum of its proper divisors (20569183).

931423457 is a wasteful number, since it uses less digits than its factorization.

931423457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85543.

The product of its digits is 90720, while the sum is 38.

The square root of 931423457 is about 30519.2309372304. The cubic root of 931423457 is about 976.5977596760.

The spelling of 931423457 in words is "nine hundred thirty-one million, four hundred twenty-three thousand, four hundred fifty-seven".