64983995 has 8 divisors (see below), whose sum is σ = 78595584. Its totient is φ = 51577344.

The previous prime is 64983959. The next prime is 64984001. The reversal of 64983995 is 59938946.

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 64983995 - 2⁶ = 64983931 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50534 + ... + 51803.

It is an arithmetic number, because the mean of its divisors is an integer number (9824448).

Almost surely, 2^64983995 is an apocalyptic number.

64983995 is a deficient number, since it is larger than the sum of its proper divisors (13611589).

64983995 is a wasteful number, since it uses less digits than its factorization.

64983995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102469.

The product of its digits is 2099520, while the sum is 53.

The square root of 64983995 is about 8061.2650992261. The cubic root of 64983995 is about 402.0395722700.

The spelling of 64983995 in words is "sixty-four million, nine hundred eighty-three thousand, nine hundred ninety-five".