64788983 has 8 divisors (see below), whose sum is σ = 75620352. Its totient is φ = 54351576.

The previous prime is 64788967. The next prime is 64789009. The reversal of 64788983 is 38988746.

It is a happy number.

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 64788983 - 2⁴ = 64788967 is a prime.

It is a super-2 number, since 2×64788983² = 8395224636348578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64788083) 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, 98135 + ... + 98792.

It is an arithmetic number, because the mean of its divisors is an integer number (9452544).

Almost surely, 2^64788983 is an apocalyptic number.

64788983 is a deficient number, since it is larger than the sum of its proper divisors (10831369).

64788983 is a wasteful number, since it uses less digits than its factorization.

64788983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196981.

The product of its digits is 2322432, while the sum is 53.

The square root of 64788983 is about 8049.1603909973. The cubic root of 64788983 is about 401.6370059727.

The spelling of 64788983 in words is "sixty-four million, seven hundred eighty-eight thousand, nine hundred eighty-three".