30985017 has 16 divisors (see below), whose sum is σ = 47349120. Its totient is φ = 17655552.

The previous prime is 30984973. The next prime is 30985051. The reversal of 30985017 is 71058903.

It is not a de Polignac number, because 30985017 - 2¹¹ = 30982969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30985417) 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, 6273 + ... + 10065.

It is an arithmetic number, because the mean of its divisors is an integer number (2959320).

Almost surely, 2^30985017 is an apocalyptic number.

It is an amenable number.

30985017 is a deficient number, since it is larger than the sum of its proper divisors (16364103).

30985017 is a wasteful number, since it uses less digits than its factorization.

30985017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 30985017 is about 5566.4186870914. The cubic root of 30985017 is about 314.0874470765.

The spelling of 30985017 in words is "thirty million, nine hundred eighty-five thousand, seventeen".