30979475 has 6 divisors (see below), whose sum is σ = 38414580. Its totient is φ = 24783560.

The previous prime is 30979469. The next prime is 30979483. The reversal of 30979475 is 57497903.

It is a happy number.

It is not a de Polignac number, because 30979475 - 2¹⁴ = 30963091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 619565 + ... + 619614.

It is an arithmetic number, because the mean of its divisors is an integer number (6402430).

Almost surely, 2^30979475 is an apocalyptic number.

30979475 is a deficient number, since it is larger than the sum of its proper divisors (7435105).

30979475 is a wasteful number, since it uses less digits than its factorization.

30979475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239189 (or 1239184 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 30979475 is about 5565.9208582228. The cubic root of 30979475 is about 314.0687199993.

The spelling of 30979475 in words is "thirty million, nine hundred seventy-nine thousand, four hundred seventy-five".