31896474 has 16 divisors (see below), whose sum is σ = 64667712. Its totient is φ = 10486368.

The previous prime is 31896463. The next prime is 31896481. The reversal of 31896474 is 47469813.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35974 + ... + 36849.

It is an arithmetic number, because the mean of its divisors is an integer number (4041732).

Almost surely, 2^31896474 is an apocalyptic number.

31896474 is an abundant number, since it is smaller than the sum of its proper divisors (32771238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31896474 is a wasteful number, since it uses less digits than its factorization.

31896474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72901.

The product of its digits is 145152, while the sum is 42.

The square root of 31896474 is about 5647.6963445284. The cubic root of 31896474 is about 317.1374711829.

The spelling of 31896474 in words is "thirty-one million, eight hundred ninety-six thousand, four hundred seventy-four".