64922988 has 48 divisors (see below), whose sum is σ = 165403616. Its totient is φ = 19699200.

The previous prime is 64922987. The next prime is 64922989. The reversal of 64922988 is 88922946.

It is an interprime number because it is at equal distance from previous prime (64922987) and next prime (64922989).

It is not an unprimeable number, because it can be changed into a prime (64922987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8538 + ... + 14238.

Almost surely, 2^64922988 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 64922988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82701808).

64922988 is an abundant number, since it is smaller than the sum of its proper divisors (100480628).

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

64922988 is a wasteful number, since it uses less digits than its factorization.

64922988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5794 (or 5792 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 64922988 is about 8057.4802512944. The cubic root of 64922988 is about 401.9137212428.

The spelling of 64922988 in words is "sixty-four million, nine hundred twenty-two thousand, nine hundred eighty-eight".