64882920 has 32 divisors (see below), whose sum is σ = 194649120. Its totient is φ = 17302080.

The previous prime is 64882913. The next prime is 64882921. The reversal of 64882920 is 2928846.

64882920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (64882921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270226 + ... + 270465.

It is an arithmetic number, because the mean of its divisors is an integer number (6082785).

Almost surely, 2^64882920 is an apocalyptic number.

64882920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64882920 is an abundant number, since it is smaller than the sum of its proper divisors (129766200).

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

64882920 is a wasteful number, since it uses less digits than its factorization.

64882920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540705 (or 540701 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 64882920 is about 8054.9934823065. The cubic root of 64882920 is about 401.8310222712.

The spelling of 64882920 in words is "sixty-four million, eight hundred eighty-two thousand, nine hundred twenty".