64793879 has 2 divisors, whose sum is σ = 64793880. Its totient is φ = 64793878.

The previous prime is 64793831. The next prime is 64793881. The reversal of 64793879 is 97839746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64793879 - 2²⁰ = 63745303 is a prime.

Together with 64793881, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64793879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64793809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32396939 + 32396940.

It is an arithmetic number, because the mean of its divisors is an integer number (32396940).

Almost surely, 2^64793879 is an apocalyptic number.

64793879 is a deficient number, since it is larger than the sum of its proper divisors (1).

64793879 is an equidigital number, since it uses as much as digits as its factorization.

64793879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 53.

The square root of 64793879 is about 8049.4645163514. The cubic root of 64793879 is about 401.6471227403.

The spelling of 64793879 in words is "sixty-four million, seven hundred ninety-three thousand, eight hundred seventy-nine".