16877979 has 6 divisors (see below), whose sum is σ = 24379316. Its totient is φ = 11251980.

The previous prime is 16877969. The next prime is 16877999. The reversal of 16877979 is 97977861.

It is not a de Polignac number, because 16877979 - 2⁷ = 16877851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16877969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 937657 + ... + 937674.

Almost surely, 2^16877979 is an apocalyptic number.

16877979 is a deficient number, since it is larger than the sum of its proper divisors (7501337).

16877979 is a wasteful number, since it uses less digits than its factorization.

16877979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875337 (or 1875334 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 16877979 is about 4108.2817576208. The cubic root of 16877979 is about 256.5114845011.

The spelling of 16877979 in words is "sixteen million, eight hundred seventy-seven thousand, nine hundred seventy-nine".