31374684 has 36 divisors (see below), whose sum is σ = 86519160. Its totient is φ = 9507360.

The previous prime is 31374677. The next prime is 31374701. The reversal of 31374684 is 48647313.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×31374684³ (a number of 23 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39219 + ... + 40010.

It is an arithmetic number, because the mean of its divisors is an integer number (2403310).

Almost surely, 2^31374684 is an apocalyptic number.

It is an amenable number.

31374684 is an abundant number, since it is smaller than the sum of its proper divisors (55144476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31374684 is a wasteful number, since it uses less digits than its factorization.

31374684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79250 (or 79245 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 31374684 is about 5601.3109179905. The cubic root of 31374684 is about 315.3986185579.

The spelling of 31374684 in words is "thirty-one million, three hundred seventy-four thousand, six hundred eighty-four".