31074087 has 16 divisors (see below), whose sum is σ = 45468288. Its totient is φ = 18720480.

The previous prime is 31074077. The next prime is 31074089. The reversal of 31074087 is 78047013.

It is a happy number.

It is not a de Polignac number, because 31074087 - 2¹⁴ = 31057703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31074089) 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, 2988 + ... + 8430.

It is an arithmetic number, because the mean of its divisors is an integer number (2841768).

Almost surely, 2^31074087 is an apocalyptic number.

31074087 is a deficient number, since it is larger than the sum of its proper divisors (14394201).

31074087 is a wasteful number, since it uses less digits than its factorization.

31074087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 31074087 is about 5574.4136014472. The cubic root of 31074087 is about 314.3881193349.

The spelling of 31074087 in words is "thirty-one million, seventy-four thousand, eighty-seven".