30960993 has 12 divisors (see below), whose sum is σ = 48021360. Its totient is φ = 17691912.

The previous prime is 30960959. The next prime is 30961019. The reversal of 30960993 is 39906903.

It is not a de Polignac number, because 30960993 - 2⁶ = 30960929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30960913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105163 + ... + 105456.

It is an arithmetic number, because the mean of its divisors is an integer number (4001780).

Almost surely, 2^30960993 is an apocalyptic number.

It is an amenable number.

30960993 is a deficient number, since it is larger than the sum of its proper divisors (17060367).

30960993 is a wasteful number, since it uses less digits than its factorization.

30960993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210636 (or 210629 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 39.

The square root of 30960993 is about 5564.2603282018. The cubic root of 30960993 is about 314.0062509743.

The spelling of 30960993 in words is "thirty million, nine hundred sixty thousand, nine hundred ninety-three".