64958879 has 2 divisors, whose sum is σ = 64958880. Its totient is φ = 64958878.

The previous prime is 64958851. The next prime is 64958893. The reversal of 64958879 is 97885946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64958879 - 2¹⁶ = 64893343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64958779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32479439 + 32479440.

It is an arithmetic number, because the mean of its divisors is an integer number (32479440).

Almost surely, 2^64958879 is an apocalyptic number.

64958879 is a deficient number, since it is larger than the sum of its proper divisors (1).

64958879 is an equidigital number, since it uses as much as digits as its factorization.

64958879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 56.

The square root of 64958879 is about 8059.7071286741. The cubic root of 64958879 is about 401.9877701452.

The spelling of 64958879 in words is "sixty-four million, nine hundred fifty-eight thousand, eight hundred seventy-nine".