16979427 has 12 divisors (see below), whose sum is σ = 24577800. Its totient is φ = 11295648.

The previous prime is 16979423. The next prime is 16979441. The reversal of 16979427 is 72497961.

It is not a de Polignac number, because 16979427 - 2² = 16979423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16979423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3199 + ... + 6647.

It is an arithmetic number, because the mean of its divisors is an integer number (2048150).

Almost surely, 2^16979427 is an apocalyptic number.

16979427 is a deficient number, since it is larger than the sum of its proper divisors (7598373).

16979427 is a wasteful number, since it uses less digits than its factorization.

16979427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002 (or 3999 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 16979427 is about 4120.6100276537. The cubic root of 16979427 is about 257.0243937138.

The spelling of 16979427 in words is "sixteen million, nine hundred seventy-nine thousand, four hundred twenty-seven".