30986065 has 16 divisors (see below), whose sum is σ = 41964480. Its totient is φ = 21757120.

The previous prime is 30986063. The next prime is 30986089. The reversal of 30986065 is 56068903.

It is not a de Polignac number, because 30986065 - 2¹ = 30986063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30986063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8119 + ... + 11308.

It is an arithmetic number, because the mean of its divisors is an integer number (2622780).

Almost surely, 2^30986065 is an apocalyptic number.

It is an amenable number.

30986065 is a deficient number, since it is larger than the sum of its proper divisors (10978415).

30986065 is a wasteful number, since it uses less digits than its factorization.

30986065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19472.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 30986065 is about 5566.5128222254. The cubic root of 30986065 is about 314.0909881421.

The spelling of 30986065 in words is "thirty million, nine hundred eighty-six thousand, sixty-five".