64383797 has 2 divisors, whose sum is σ = 64383798. Its totient is φ = 64383796.

The previous prime is 64383773. The next prime is 64383829. The reversal of 64383797 is 79738346.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58277956 + 6105841 = 7634^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 64383797 - 2¹⁸ = 64121653 is a prime.

It is a super-2 number, since 2×64383797² = 8290546632274418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64383707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32191898 + 32191899.

It is an arithmetic number, because the mean of its divisors is an integer number (32191899).

Almost surely, 2^64383797 is an apocalyptic number.

It is an amenable number.

64383797 is a deficient number, since it is larger than the sum of its proper divisors (1).

64383797 is an equidigital number, since it uses as much as digits as its factorization.

64383797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 47.

The square root of 64383797 is about 8023.9514579788. The cubic root of 64383797 is about 400.7979840782.

The spelling of 64383797 in words is "sixty-four million, three hundred eighty-three thousand, seven hundred ninety-seven".