63764880 has 80 divisors (see below), whose sum is σ = 198469440. Its totient is φ = 16935424.

The previous prime is 63764863. The next prime is 63764903. The reversal of 63764880 is 8846736.

It is a tau number, because it is divible by the number of its divisors (80).

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, 93019 + ... + 93701.

It is an arithmetic number, because the mean of its divisors is an integer number (2480868).

Almost surely, 2^63764880 is an apocalyptic number.

63764880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63764880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99234720).

63764880 is an abundant number, since it is smaller than the sum of its proper divisors (134704560).

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

63764880 is a wasteful number, since it uses less digits than its factorization.

63764880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 63764880 is about 7985.2914787126. The cubic root of 63764880 is about 399.5095655977.

The spelling of 63764880 in words is "sixty-three million, seven hundred sixty-four thousand, eight hundred eighty".