64015979 has 2 divisors, whose sum is σ = 64015980. Its totient is φ = 64015978.

The previous prime is 64015951. The next prime is 64015993. The reversal of 64015979 is 97951046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64015979 - 2¹⁶ = 63950443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64015879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32007989 + 32007990.

It is an arithmetic number, because the mean of its divisors is an integer number (32007990).

Almost surely, 2^64015979 is an apocalyptic number.

64015979 is a deficient number, since it is larger than the sum of its proper divisors (1).

64015979 is an equidigital number, since it uses as much as digits as its factorization.

64015979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 64015979 is about 8000.9986251717. The cubic root of 64015979 is about 400.0332868132.

The spelling of 64015979 in words is "sixty-four million, fifteen thousand, nine hundred seventy-nine".