64882880 has 56 divisors (see below), whose sum is σ = 163604448. Its totient is φ = 24424448.

The previous prime is 64882879. The next prime is 64882913. The reversal of 64882880 is 8828846.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524 + ... + 11403.

It is an arithmetic number, because the mean of its divisors is an integer number (2921508).

Almost surely, 2^64882880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64882880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81802224).

64882880 is an abundant number, since it is smaller than the sum of its proper divisors (98721568).

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

64882880 is a wasteful number, since it uses less digits than its factorization.

64882880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11961 (or 11951 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The square root of 64882880 is about 8054.9909993742. The cubic root of 64882880 is about 401.8309396956.

The spelling of 64882880 in words is "sixty-four million, eight hundred eighty-two thousand, eight hundred eighty".