31264868 has 6 divisors (see below), whose sum is σ = 54713526. Its totient is φ = 15632432.

The previous prime is 31264841. The next prime is 31264897. The reversal of 31264868 is 86846213.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25321024 + 5943844 = 5032^2 + 2438^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3908105 + ... + 3908112.

It is an arithmetic number, because the mean of its divisors is an integer number (9118921).

Almost surely, 2^31264868 is an apocalyptic number.

It is an amenable number.

31264868 is a deficient number, since it is larger than the sum of its proper divisors (23448658).

31264868 is a wasteful number, since it uses less digits than its factorization.

31264868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7816221 (or 7816219 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 31264868 is about 5591.4996199589. The cubic root of 31264868 is about 315.0302079034.

The spelling of 31264868 in words is "thirty-one million, two hundred sixty-four thousand, eight hundred sixty-eight".