64966799 has 2 divisors, whose sum is σ = 64966800. Its totient is φ = 64966798.

The previous prime is 64966763. The next prime is 64966807. The reversal of 64966799 is 99766946.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64966799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64966199) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32483399 + 32483400.

It is an arithmetic number, because the mean of its divisors is an integer number (32483400).

Almost surely, 2^64966799 is an apocalyptic number.

64966799 is a deficient number, since it is larger than the sum of its proper divisors (1).

64966799 is an equidigital number, since it uses as much as digits as its factorization.

64966799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 56.

The square root of 64966799 is about 8060.1984466885. The cubic root of 64966799 is about 402.0041067046.

The spelling of 64966799 in words is "sixty-four million, nine hundred sixty-six thousand, seven hundred ninety-nine".