17990516 has 12 divisors (see below), whose sum is σ = 32017440. Its totient is φ = 8842680.

The previous prime is 17990503. The next prime is 17990537. The reversal of 17990516 is 61509971.

It is a self number, because there is not a number n which added to its sum of digits gives 17990516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37880 + ... + 38351.

It is an arithmetic number, because the mean of its divisors is an integer number (2668120).

Almost surely, 2^17990516 is an apocalyptic number.

It is an amenable number.

17990516 is a deficient number, since it is larger than the sum of its proper divisors (14026924).

17990516 is a wasteful number, since it uses less digits than its factorization.

17990516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76294 (or 76292 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 17990516 is about 4241.5228397357. The cubic root of 17990516 is about 262.0281033506.

The spelling of 17990516 in words is "seventeen million, nine hundred ninety thousand, five hundred sixteen".