64099879 has 2 divisors, whose sum is σ = 64099880. Its totient is φ = 64099878.

The previous prime is 64099859. The next prime is 64099907. The reversal of 64099879 is 97899046.

64099879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64099879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64099829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32049939 + 32049940.

It is an arithmetic number, because the mean of its divisors is an integer number (32049940).

Almost surely, 2^64099879 is an apocalyptic number.

64099879 is a deficient number, since it is larger than the sum of its proper divisors (1).

64099879 is an equidigital number, since it uses as much as digits as its factorization.

64099879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 64099879 is about 8006.2400038970. The cubic root of 64099879 is about 400.2079730992.

The spelling of 64099879 in words is "sixty-four million, ninety-nine thousand, eight hundred seventy-nine".