64328783 has 8 divisors (see below), whose sum is σ = 64995840. Its totient is φ = 63664920.

The previous prime is 64328779. The next prime is 64328791. The reversal of 64328783 is 38782346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64328783 - 2² = 64328779 is a prime.

It is a super-2 number, since 2×64328783² = 8276384644522178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64328783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64328773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64418 + ... + 65408.

It is an arithmetic number, because the mean of its divisors is an integer number (8124480).

Almost surely, 2^64328783 is an apocalyptic number.

64328783 is a deficient number, since it is larger than the sum of its proper divisors (667057).

64328783 is a wasteful number, since it uses less digits than its factorization.

64328783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597.

The product of its digits is 193536, while the sum is 41.

The square root of 64328783 is about 8020.5226138949. The cubic root of 64328783 is about 400.6837949783.

The spelling of 64328783 in words is "sixty-four million, three hundred twenty-eight thousand, seven hundred eighty-three".