31230704 has 20 divisors (see below), whose sum is σ = 60787776. Its totient is φ = 15543552.

The previous prime is 31230677. The next prime is 31230769. The reversal of 31230704 is 40703213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809 + ... + 7944.

Almost surely, 2^31230704 is an apocalyptic number.

It is an amenable number.

31230704 is a deficient number, since it is larger than the sum of its proper divisors (29557072).

31230704 is a wasteful number, since it uses less digits than its factorization.

31230704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984 (or 8978 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 31230704 is about 5588.4437905378. The cubic root of 31230704 is about 314.9154186279.

Adding to 31230704 its reverse (40703213), we get a palindrome (71933917).

The spelling of 31230704 in words is "thirty-one million, two hundred thirty thousand, seven hundred four".