16979451 has 16 divisors (see below), whose sum is σ = 24074496. Its totient is φ = 10620896.

The previous prime is 16979441. The next prime is 16979467. The reversal of 16979451 is 15497961.

It is a cyclic number.

It is not a de Polignac number, because 16979451 - 2⁵ = 16979419 is a prime.

It is a super-2 number, since 2×16979451² = 576603512522802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16979401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1336 + ... + 5978.

It is an arithmetic number, because the mean of its divisors is an integer number (1504656).

Almost surely, 2^16979451 is an apocalyptic number.

16979451 is a deficient number, since it is larger than the sum of its proper divisors (7095045).

16979451 is a wasteful number, since it uses less digits than its factorization.

16979451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4722.

The product of its digits is 68040, while the sum is 42.

The square root of 16979451 is about 4120.6129398428. The cubic root of 16979451 is about 257.0245148129.

The spelling of 16979451 in words is "sixteen million, nine hundred seventy-nine thousand, four hundred fifty-one".