30960985 has 16 divisors (see below), whose sum is σ = 40917312. Its totient is φ = 22302400.

The previous prime is 30960959. The next prime is 30961019. The reversal of 30960985 is 58906903.

It is not a de Polignac number, because 30960985 - 2⁵ = 30960953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3255 + ... + 8515.

It is an arithmetic number, because the mean of its divisors is an integer number (2557332).

Almost surely, 2^30960985 is an apocalyptic number.

It is an amenable number.

30960985 is a deficient number, since it is larger than the sum of its proper divisors (9956327).

30960985 is a wasteful number, since it uses less digits than its factorization.

30960985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 30960985 is about 5564.2596093281. The cubic root of 30960985 is about 314.0062239290.

The spelling of 30960985 in words is "thirty million, nine hundred sixty thousand, nine hundred eighty-five".