31479612 has 24 divisors (see below), whose sum is σ = 75161856. Its totient is φ = 10249008.

The previous prime is 31479593. The next prime is 31479619. The reversal of 31479612 is 21697413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31479619) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29988 + ... + 31019.

It is an arithmetic number, because the mean of its divisors is an integer number (3131744).

Almost surely, 2^31479612 is an apocalyptic number.

It is an amenable number.

31479612 is an abundant number, since it is smaller than the sum of its proper divisors (43682244).

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

31479612 is a wasteful number, since it uses less digits than its factorization.

31479612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61057 (or 61055 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 31479612 is about 5610.6694787699. The cubic root of 31479612 is about 315.7498287014.

The spelling of 31479612 in words is "thirty-one million, four hundred seventy-nine thousand, six hundred twelve".