30906965 has 8 divisors (see below), whose sum is σ = 37877760. Its totient is φ = 24199312.

The previous prime is 30906947. The next prime is 30906979. The reversal of 30906965 is 56960903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30906965 - 2⁸ = 30906709 is a prime.

It is a super-2 number, since 2×30906965² = 1910480971022450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65525 + ... + 65994.

It is an arithmetic number, because the mean of its divisors is an integer number (4734720).

Almost surely, 2^30906965 is an apocalyptic number.

It is an amenable number.

30906965 is a deficient number, since it is larger than the sum of its proper divisors (6970795).

30906965 is a wasteful number, since it uses less digits than its factorization.

30906965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131571.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 30906965 is about 5559.4032953187. The cubic root of 30906965 is about 313.8234940501.

The spelling of 30906965 in words is "thirty million, nine hundred six thousand, nine hundred sixty-five".