31864097 has 8 divisors (see below), whose sum is σ = 32496000. Its totient is φ = 31238064.

The previous prime is 31864087. The next prime is 31864099. The reversal of 31864097 is 79046813.

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 31864097 - 2¹² = 31860001 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 31864097.

It is not an unprimeable number, because it can be changed into a prime (31864099) 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, 10418 + ... + 13124.

It is an arithmetic number, because the mean of its divisors is an integer number (4062000).

Almost surely, 2^31864097 is an apocalyptic number.

It is an amenable number.

31864097 is a deficient number, since it is larger than the sum of its proper divisors (631903).

31864097 is a wasteful number, since it uses less digits than its factorization.

31864097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 31864097 is about 5644.8292268234. The cubic root of 31864097 is about 317.0301297875.

The spelling of 31864097 in words is "thirty-one million, eight hundred sixty-four thousand, ninety-seven".