30972935 has 32 divisors (see below), whose sum is σ = 44167680. Its totient is φ = 20412288.

The previous prime is 30972919. The next prime is 30972947. The reversal of 30972935 is 53927903.

It is a cyclic number.

It is not a de Polignac number, because 30972935 - 2⁴ = 30972919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109304 + ... + 109586.

It is an arithmetic number, because the mean of its divisors is an integer number (1380240).

Almost surely, 2^30972935 is an apocalyptic number.

30972935 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30972935 is a deficient number, since it is larger than the sum of its proper divisors (13194745).

30972935 is a wasteful number, since it uses less digits than its factorization.

30972935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 30972935 is about 5565.3333233509. Note that the first 4 decimals coincide. The cubic root of 30972935 is about 314.0466176881.

The spelling of 30972935 in words is "thirty million, nine hundred seventy-two thousand, nine hundred thirty-five".