64959793 has 2 divisors, whose sum is σ = 64959794. Its totient is φ = 64959792.

The previous prime is 64959779. The next prime is 64959857. The reversal of 64959793 is 39795946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59706529 + 5253264 = 7727^2 + 2292^2 .

It is a cyclic number.

It is not a de Polignac number, because 64959793 - 2⁹ = 64959281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64959793.

It is not a weakly prime, because it can be changed into another prime (64959893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32479896 + 32479897.

It is an arithmetic number, because the mean of its divisors is an integer number (32479897).

Almost surely, 2^64959793 is an apocalyptic number.

It is an amenable number.

64959793 is a deficient number, since it is larger than the sum of its proper divisors (1).

64959793 is an equidigital number, since it uses as much as digits as its factorization.

64959793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1837080, while the sum is 52.

The square root of 64959793 is about 8059.7638302868. The cubic root of 64959793 is about 401.9896555179.

The spelling of 64959793 in words is "sixty-four million, nine hundred fifty-nine thousand, seven hundred ninety-three".