16972690 has 16 divisors (see below), whose sum is σ = 34915392. Its totient is φ = 5819184.

The previous prime is 16972679. The next prime is 16972693. The reversal of 16972690 is 9627961.

It is a super-2 number, since 2×16972690² = 576144411672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16972693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121164 + ... + 121303.

It is an arithmetic number, because the mean of its divisors is an integer number (2182212).

Almost surely, 2^16972690 is an apocalyptic number.

16972690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16972690 is an abundant number, since it is smaller than the sum of its proper divisors (17942702).

16972690 is a wasteful number, since it uses less digits than its factorization.

16972690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242481.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 16972690 is about 4119.7924705014. The cubic root of 16972690 is about 256.9903956602.

The spelling of 16972690 in words is "sixteen million, nine hundred seventy-two thousand, six hundred ninety".