64319383 has 2 divisors, whose sum is σ = 64319384. Its totient is φ = 64319382.

The previous prime is 64319371. The next prime is 64319393. The reversal of 64319383 is 38391346.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64319383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64319393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32159691 + 32159692.

It is an arithmetic number, because the mean of its divisors is an integer number (32159692).

Almost surely, 2^64319383 is an apocalyptic number.

64319383 is a deficient number, since it is larger than the sum of its proper divisors (1).

64319383 is an equidigital number, since it uses as much as digits as its factorization.

64319383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 64319383 is about 8019.9365957593. The cubic root of 64319383 is about 400.6642774779.

The spelling of 64319383 in words is "sixty-four million, three hundred nineteen thousand, three hundred eighty-three".