31964038 has 16 divisors (see below), whose sum is σ = 49762944. Its totient is φ = 15382080.

The previous prime is 31964033. The next prime is 31964039. The reversal of 31964038 is 83046913.

It is a junction number, because it is equal to n+sod(n) for n = 31963994 and 31964012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31964033) 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, 10906 + ... + 13522.

It is an arithmetic number, because the mean of its divisors is an integer number (3110184).

Almost surely, 2^31964038 is an apocalyptic number.

31964038 is a deficient number, since it is larger than the sum of its proper divisors (17798906).

31964038 is a wasteful number, since it uses less digits than its factorization.

31964038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 31964038 is about 5653.6747341884. The cubic root of 31964038 is about 317.3612364047.

The spelling of 31964038 in words is "thirty-one million, nine hundred sixty-four thousand, thirty-eight".