30713912 has 8 divisors (see below), whose sum is σ = 57588600. Its totient is φ = 15356952.

The previous prime is 30713909. The next prime is 30713941. The reversal of 30713912 is 21931703.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1919612 + ... + 1919627.

It is an arithmetic number, because the mean of its divisors is an integer number (7198575).

Almost surely, 2^30713912 is an apocalyptic number.

It is an amenable number.

30713912 is a deficient number, since it is larger than the sum of its proper divisors (26874688).

30713912 is a wasteful number, since it uses less digits than its factorization.

30713912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839245 (or 3839241 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 30713912 is about 5542.0133525642. The cubic root of 30713912 is about 313.1687209386.

The spelling of 30713912 in words is "thirty million, seven hundred thirteen thousand, nine hundred twelve".