64797985 has 8 divisors (see below), whose sum is σ = 88865856. Its totient is φ = 44432880.

The previous prime is 64797983. The next prime is 64798001. The reversal of 64797985 is 58979746.

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

It is not a de Polignac number, because 64797985 - 2¹ = 64797983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64797983) 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, 925651 + ... + 925720.

It is an arithmetic number, because the mean of its divisors is an integer number (11108232).

Almost surely, 2^64797985 is an apocalyptic number.

It is an amenable number.

64797985 is a deficient number, since it is larger than the sum of its proper divisors (24067871).

64797985 is a wasteful number, since it uses less digits than its factorization.

64797985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851383.

The product of its digits is 3810240, while the sum is 55.

The square root of 64797985 is about 8049.7195603325. The cubic root of 64797985 is about 401.6556067117.

The spelling of 64797985 in words is "sixty-four million, seven hundred ninety-seven thousand, nine hundred eighty-five".