30791313 has 16 divisors (see below), whose sum is σ = 52133760. Its totient is φ = 17594928.

The previous prime is 30791279. The next prime is 30791329. The reversal of 30791313 is 31319703.

It is not a de Polignac number, because 30791313 - 2⁹ = 30790801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30791113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81270 + ... + 81647.

It is an arithmetic number, because the mean of its divisors is an integer number (3258360).

Almost surely, 2^30791313 is an apocalyptic number.

It is an amenable number.

30791313 is a deficient number, since it is larger than the sum of its proper divisors (21342447).

30791313 is a wasteful number, since it uses less digits than its factorization.

30791313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162933 (or 162927 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 30791313 is about 5548.9920706377. The cubic root of 30791313 is about 313.4315685898.

The spelling of 30791313 in words is "thirty million, seven hundred ninety-one thousand, three hundred thirteen".