16164979 has 2 divisors, whose sum is σ = 16164980. Its totient is φ = 16164978.

The previous prime is 16164971. The next prime is 16164983. The reversal of 16164979 is 97946161.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16164979 - 2³ = 16164971 is a prime.

It is a super-4 number, since 4×16164979⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (16164971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8082489 + 8082490.

It is an arithmetic number, because the mean of its divisors is an integer number (8082490).

Almost surely, 2^16164979 is an apocalyptic number.

16164979 is a deficient number, since it is larger than the sum of its proper divisors (1).

16164979 is an equidigital number, since it uses as much as digits as its factorization.

16164979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 16164979 is about 4020.5694870254. The cubic root of 16164979 is about 252.8473356038.

The spelling of 16164979 in words is "sixteen million, one hundred sixty-four thousand, nine hundred seventy-nine".