64880635 has 8 divisors (see below), whose sum is σ = 77986656. Its totient is φ = 51817920.

The previous prime is 64880587. The next prime is 64880657. The reversal of 64880635 is 53608846.

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

It is not a de Polignac number, because 64880635 - 2¹⁷ = 64749563 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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7431 + ... + 13600.

It is an arithmetic number, because the mean of its divisors is an integer number (9748332).

Almost surely, 2^64880635 is an apocalyptic number.

64880635 is a deficient number, since it is larger than the sum of its proper divisors (13106021).

64880635 is a wasteful number, since it uses less digits than its factorization.

64880635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21653.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 64880635 is about 8054.8516435748. The cubic root of 64880635 is about 401.8263050839.

The spelling of 64880635 in words is "sixty-four million, eight hundred eighty thousand, six hundred thirty-five".