31374497 has 16 divisors (see below), whose sum is σ = 39266304. Its totient is φ = 24354000.

The previous prime is 31374481. The next prime is 31374509. The reversal of 31374497 is 79447313.

It is a happy number.

It is not a de Polignac number, because 31374497 - 2⁴ = 31374481 is a prime.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 31374497.

It is not an unprimeable number, because it can be changed into a prime (31374407) 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, 24872 + ... + 26102.

It is an arithmetic number, because the mean of its divisors is an integer number (2454144).

Almost surely, 2^31374497 is an apocalyptic number.

It is an amenable number.

31374497 is a deficient number, since it is larger than the sum of its proper divisors (7891807).

31374497 is a wasteful number, since it uses less digits than its factorization.

31374497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580.

The product of its digits is 63504, while the sum is 38.

The square root of 31374497 is about 5601.2942254447. The cubic root of 31374497 is about 315.3979919417.

The spelling of 31374497 in words is "thirty-one million, three hundred seventy-four thousand, four hundred ninety-seven".