31064493 has 16 divisors (see below), whose sum is σ = 42517440. Its totient is φ = 20168064.

The previous prime is 31064479. The next prime is 31064507. The reversal of 31064493 is 39446013.

It is an interprime number because it is at equal distance from previous prime (31064479) and next prime (31064507).

It is not a de Polignac number, because 31064493 - 2⁴ = 31064477 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31064493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31064443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17323 + ... + 19031.

It is an arithmetic number, because the mean of its divisors is an integer number (2657340).

Almost surely, 2^31064493 is an apocalyptic number.

It is an amenable number.

31064493 is a deficient number, since it is larger than the sum of its proper divisors (11452947).

31064493 is a wasteful number, since it uses less digits than its factorization.

31064493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 31064493 is about 5573.5529960699. The cubic root of 31064493 is about 314.3557606466.

The spelling of 31064493 in words is "thirty-one million, sixty-four thousand, four hundred ninety-three".