16746979 has 2 divisors, whose sum is σ = 16746980. Its totient is φ = 16746978.

The previous prime is 16746943. The next prime is 16747019. The reversal of 16746979 is 97964761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16746979 - 2¹⁵ = 16714211 is a prime.

It is a super-2 number, since 2×16746979² = 560922611252882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16740979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8373489 + 8373490.

It is an arithmetic number, because the mean of its divisors is an integer number (8373490).

Almost surely, 2^16746979 is an apocalyptic number.

16746979 is a deficient number, since it is larger than the sum of its proper divisors (1).

16746979 is an equidigital number, since it uses as much as digits as its factorization.

16746979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 49.

The square root of 16746979 is about 4092.3072954019. The cubic root of 16746979 is about 255.8461141803.

The spelling of 16746979 in words is "sixteen million, seven hundred forty-six thousand, nine hundred seventy-nine".