64499713 has 2 divisors, whose sum is σ = 64499714. Its totient is φ = 64499712.

The previous prime is 64499693. The next prime is 64499723. The reversal of 64499713 is 31799446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52823824 + 11675889 = 7268^2 + 3417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64499713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64499713.

It is not a weakly prime, because it can be changed into another prime (64499723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32249856 + 32249857.

It is an arithmetic number, because the mean of its divisors is an integer number (32249857).

Almost surely, 2^64499713 is an apocalyptic number.

It is an amenable number.

64499713 is a deficient number, since it is larger than the sum of its proper divisors (1).

64499713 is an equidigital number, since it uses as much as digits as its factorization.

64499713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 64499713 is about 8031.1713342451. The cubic root of 64499713 is about 401.0383708823.

The spelling of 64499713 in words is "sixty-four million, four hundred ninety-nine thousand, seven hundred thirteen".