64884066 has 16 divisors (see below), whose sum is σ = 139750464. Its totient is φ = 19964304.

The previous prime is 64884041. The next prime is 64884067. The reversal of 64884066 is 66048846.

It is not an unprimeable number, because it can be changed into a prime (64884067) 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, 415846 + ... + 416001.

It is an arithmetic number, because the mean of its divisors is an integer number (8734404).

Almost surely, 2^64884066 is an apocalyptic number.

64884066 is an abundant number, since it is smaller than the sum of its proper divisors (74866398).

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

64884066 is a wasteful number, since it uses less digits than its factorization.

64884066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831865.

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 64884066 is about 8055.0646179903. The cubic root of 64884066 is about 401.8333880486.

The spelling of 64884066 in words is "sixty-four million, eight hundred eighty-four thousand, sixty-six".