64785480 has 64 divisors (see below), whose sum is σ = 202815360. Its totient is φ = 16524288.

The previous prime is 64785473. The next prime is 64785517. The reversal of 64785480 is 8458746.

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, 8977 + ... + 14496.

It is an arithmetic number, because the mean of its divisors is an integer number (3168990).

Almost surely, 2^64785480 is an apocalyptic number.

64785480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64785480 is an abundant number, since it is smaller than the sum of its proper divisors (138029880).

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

64785480 is a wasteful number, since it uses less digits than its factorization.

64785480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23510 (or 23506 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 64785480 is about 8048.9427877206. The cubic root of 64785480 is about 401.6297672946.

The spelling of 64785480 in words is "sixty-four million, seven hundred eighty-five thousand, four hundred eighty".