64368783 has 16 divisors (see below), whose sum is σ = 100971360. Its totient is φ = 40387968.

The previous prime is 64368779. The next prime is 64368809. The reversal of 64368783 is 38786346.

It is not a de Polignac number, because 64368783 - 2² = 64368779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64368683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69660 + ... + 70577.

It is an arithmetic number, because the mean of its divisors is an integer number (6310710).

Almost surely, 2^64368783 is an apocalyptic number.

64368783 is a deficient number, since it is larger than the sum of its proper divisors (36602577).

64368783 is a wasteful number, since it uses less digits than its factorization.

64368783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140263 (or 140257 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 64368783 is about 8023.0158294746. The cubic root of 64368783 is about 400.7668269185.

The spelling of 64368783 in words is "sixty-four million, three hundred sixty-eight thousand, seven hundred eighty-three".