31340799 has 12 divisors (see below), whose sum is σ = 51737296. Its totient is φ = 17908992.

The previous prime is 31340767. The next prime is 31340831. The reversal of 31340799 is 99704313.

It is an interprime number because it is at equal distance from previous prime (31340767) and next prime (31340831).

It is not a de Polignac number, because 31340799 - 2⁵ = 31340767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31341799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248674 + ... + 248799.

Almost surely, 2^31340799 is an apocalyptic number.

31340799 is a deficient number, since it is larger than the sum of its proper divisors (20396497).

31340799 is a wasteful number, since it uses less digits than its factorization.

31340799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497486 (or 497483 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 31340799 is about 5598.2853625016. The cubic root of 31340799 is about 315.2850330106.

The spelling of 31340799 in words is "thirty-one million, three hundred forty thousand, seven hundred ninety-nine".