30917117 has 16 divisors (see below), whose sum is σ = 39370752. Its totient is φ = 23575920.

The previous prime is 30917111. The next prime is 30917119. The reversal of 30917117 is 71171903.

It is a cyclic number.

It is not a de Polignac number, because 30917117 - 2¹⁴ = 30900733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30917117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30917111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653 + ... + 7890.

It is an arithmetic number, because the mean of its divisors is an integer number (2460672).

Almost surely, 2^30917117 is an apocalyptic number.

It is an amenable number.

30917117 is a deficient number, since it is larger than the sum of its proper divisors (8453635).

30917117 is a wasteful number, since it uses less digits than its factorization.

30917117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8608.

The product of its (nonzero) digits is 1323, while the sum is 29.

The square root of 30917117 is about 5560.3162679833. The cubic root of 30917117 is about 313.8578507865.

The spelling of 30917117 in words is "thirty million, nine hundred seventeen thousand, one hundred seventeen".