64099859 has 2 divisors, whose sum is σ = 64099860. Its totient is φ = 64099858.

The previous prime is 64099829. The next prime is 64099879. The reversal of 64099859 is 95899046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64099859 - 2⁸ = 64099603 is a prime.

It is a Chen prime.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32049929 + 32049930.

It is an arithmetic number, because the mean of its divisors is an integer number (32049930).

Almost surely, 2^64099859 is an apocalyptic number.

64099859 is a deficient number, since it is larger than the sum of its proper divisors (1).

64099859 is an equidigital number, since it uses as much as digits as its factorization.

64099859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 64099859 is about 8006.2387548711. The cubic root of 64099859 is about 400.2079314759.

The spelling of 64099859 in words is "sixty-four million, ninety-nine thousand, eight hundred fifty-nine".