64807480 has 64 divisors (see below), whose sum is σ = 154548000. Its totient is φ = 24390144.

The previous prime is 64807441. The next prime is 64807481. The reversal of 64807480 is 8470846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64807481) 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, 204282 + ... + 204598.

Almost surely, 2^64807480 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 64807480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77274000).

64807480 is an abundant number, since it is smaller than the sum of its proper divisors (89740520).

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

64807480 is a wasteful number, since it uses less digits than its factorization.

64807480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 64807480 is about 8050.3093108278. The cubic root of 64807480 is about 401.6752242648.

The spelling of 64807480 in words is "sixty-four million, eight hundred seven thousand, four hundred eighty".