64407313 has 2 divisors, whose sum is σ = 64407314. Its totient is φ = 64407312.

The previous prime is 64407311. The next prime is 64407319. The reversal of 64407313 is 31370446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62995969 + 1411344 = 7937^2 + 1188^2 .

It is a cyclic number.

It is not a de Polignac number, because 64407313 - 2¹ = 64407311 is a prime.

Together with 64407311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64407311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32203656 + 32203657.

It is an arithmetic number, because the mean of its divisors is an integer number (32203657).

Almost surely, 2^64407313 is an apocalyptic number.

It is an amenable number.

64407313 is a deficient number, since it is larger than the sum of its proper divisors (1).

64407313 is an equidigital number, since it uses as much as digits as its factorization.

64407313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 64407313 is about 8025.4166870014. The cubic root of 64407313 is about 400.8467749157.

Adding to 64407313 its reverse (31370446), we get a palindrome (95777759).

The spelling of 64407313 in words is "sixty-four million, four hundred seven thousand, three hundred thirteen".