30961795 has 16 divisors (see below), whose sum is σ = 39048192. Its totient is φ = 23522400.

The previous prime is 30961787. The next prime is 30961817. The reversal of 30961795 is 59716903.

It is not a de Polignac number, because 30961795 - 2³ = 30961787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16474 + ... + 18256.

It is an arithmetic number, because the mean of its divisors is an integer number (2440512).

Almost surely, 2^30961795 is an apocalyptic number.

30961795 is a deficient number, since it is larger than the sum of its proper divisors (8086397).

30961795 is a wasteful number, since it uses less digits than its factorization.

30961795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 30961795 is about 5564.3323948161. The cubic root of 30961795 is about 314.0089622444.

The spelling of 30961795 in words is "thirty million, nine hundred sixty-one thousand, seven hundred ninety-five".