31494712 has 8 divisors (see below), whose sum is σ = 59052600. Its totient is φ = 15747352.

The previous prime is 31494707. The next prime is 31494713. The reversal of 31494712 is 21749413.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31494713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1968412 + ... + 1968427.

It is an arithmetic number, because the mean of its divisors is an integer number (7381575).

Almost surely, 2^31494712 is an apocalyptic number.

It is an amenable number.

31494712 is a deficient number, since it is larger than the sum of its proper divisors (27557888).

31494712 is a wasteful number, since it uses less digits than its factorization.

31494712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936845 (or 3936841 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 31494712 is about 5612.0149679059. The cubic root of 31494712 is about 315.8003064549.

The spelling of 31494712 in words is "thirty-one million, four hundred ninety-four thousand, seven hundred twelve".