64764960 has 192 divisors, whose sum is σ = 224042112. Its totient is φ = 15630336.

The previous prime is 64764929. The next prime is 64764967. The reversal of 64764960 is 6946746.

It is not an unprimeable number, because it can be changed into a prime (64764967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 605227 + ... + 605333.

It is an arithmetic number, because the mean of its divisors is an integer number (1166886).

Almost surely, 2^64764960 is an apocalyptic number.

64764960 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 64764960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112021056).

64764960 is an abundant number, since it is smaller than the sum of its proper divisors (159277152).

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

64764960 is a wasteful number, since it uses less digits than its factorization.

64764960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 64764960 is about 8047.6679851992. The cubic root of 64764960 is about 401.5873590620.

The spelling of 64764960 in words is "sixty-four million, seven hundred sixty-four thousand, nine hundred sixty".