30472975 has 12 divisors (see below), whose sum is σ = 40693576. Its totient is φ = 22502880.

The previous prime is 30472961. The next prime is 30473011. The reversal of 30472975 is 57927403.

It is not a de Polignac number, because 30472975 - 2⁵ = 30472943 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46557 + ... + 47206.

Almost surely, 2^30472975 is an apocalyptic number.

30472975 is a deficient number, since it is larger than the sum of its proper divisors (10220601).

30472975 is a wasteful number, since it uses less digits than its factorization.

30472975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93786 (or 93781 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 30472975 is about 5520.2332378261. The cubic root of 30472975 is about 312.3476804347.

The spelling of 30472975 in words is "thirty million, four hundred seventy-two thousand, nine hundred seventy-five".