64874689 has 8 divisors (see below), whose sum is σ = 71972640. Its totient is φ = 57976800.

The previous prime is 64874687. The next prime is 64874701. The reversal of 64874689 is 98647846.

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 64874689 - 2¹ = 64874687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64874687) 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, 49332 + ... + 50629.

It is an arithmetic number, because the mean of its divisors is an integer number (8996580).

Almost surely, 2^64874689 is an apocalyptic number.

It is an amenable number.

64874689 is a deficient number, since it is larger than the sum of its proper divisors (7097951).

64874689 is a wasteful number, since it uses less digits than its factorization.

64874689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100031.

The product of its digits is 2322432, while the sum is 52.

The square root of 64874689 is about 8054.4825407968. The cubic root of 64874689 is about 401.8140295556.

The spelling of 64874689 in words is "sixty-four million, eight hundred seventy-four thousand, six hundred eighty-nine".