64880886 has 32 divisors (see below), whose sum is σ = 148555008. Its totient is φ = 18505440.

The previous prime is 64880873. The next prime is 64880927. The reversal of 64880886 is 68808846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34921 + ... + 36731.

It is an arithmetic number, because the mean of its divisors is an integer number (4642344).

Almost surely, 2^64880886 is an apocalyptic number.

64880886 is an abundant number, since it is smaller than the sum of its proper divisors (83674122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64880886 is a wasteful number, since it uses less digits than its factorization.

64880886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676.

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 64880886 is about 8054.8672242316. The cubic root of 64880886 is about 401.8268232573.

The spelling of 64880886 in words is "sixty-four million, eight hundred eighty thousand, eight hundred eighty-six".