16822979 has 6 divisors (see below), whose sum is σ = 17871084. Its totient is φ = 15833120.

The previous prime is 16822969. The next prime is 16823011. The reversal of 16822979 is 97922861.

It is a happy number.

It is not a de Polignac number, because 16822979 - 2⁸ = 16822723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16822909) 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, 28817 + ... + 29394.

It is an arithmetic number, because the mean of its divisors is an integer number (2978514).

Almost surely, 2^16822979 is an apocalyptic number.

16822979 is a deficient number, since it is larger than the sum of its proper divisors (1048105).

16822979 is an equidigital number, since it uses as much as digits as its factorization.

16822979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58245 (or 58228 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 16822979 is about 4101.5824994751. The cubic root of 16822979 is about 256.2325513402.

The spelling of 16822979 in words is "sixteen million, eight hundred twenty-two thousand, nine hundred seventy-nine".