16715979 has 12 divisors (see below), whose sum is σ = 27594736. Its totient is φ = 9551952.

The previous prime is 16715969. The next prime is 16715983. The reversal of 16715979 is 97951761.

It is not a de Polignac number, because 16715979 - 2¹⁶ = 16650443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16715969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132604 + ... + 132729.

Almost surely, 2^16715979 is an apocalyptic number.

16715979 is a deficient number, since it is larger than the sum of its proper divisors (10878757).

16715979 is a wasteful number, since it uses less digits than its factorization.

16715979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265346 (or 265343 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 16715979 is about 4088.5179466403. The cubic root of 16715979 is about 255.6881527880.

The spelling of 16715979 in words is "sixteen million, seven hundred fifteen thousand, nine hundred seventy-nine".