30993692 has 12 divisors (see below), whose sum is σ = 56109480. Its totient is φ = 14962416.

The previous prime is 30993667. The next prime is 30993709. The reversal of 30993692 is 29639903.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133478 + ... + 133709.

It is an arithmetic number, because the mean of its divisors is an integer number (4675790).

Almost surely, 2^30993692 is an apocalyptic number.

It is an amenable number.

30993692 is a deficient number, since it is larger than the sum of its proper divisors (25115788).

30993692 is a wasteful number, since it uses less digits than its factorization.

30993692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267220 (or 267218 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 41.

The square root of 30993692 is about 5567.1978588874. The cubic root of 30993692 is about 314.1167564506.

The spelling of 30993692 in words is "thirty million, nine hundred ninety-three thousand, six hundred ninety-two".