64470660 has 24 divisors (see below), whose sum is σ = 180518016. Its totient is φ = 17192160.

The previous prime is 64470641. The next prime is 64470689. The reversal of 64470660 is 6607446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537196 + ... + 537315.

It is an arithmetic number, because the mean of its divisors is an integer number (7521584).

Almost surely, 2^64470660 is an apocalyptic number.

64470660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64470660 is an abundant number, since it is smaller than the sum of its proper divisors (116047356).

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

64470660 is a wasteful number, since it uses less digits than its factorization.

64470660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074523 (or 1074521 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 64470660 is about 8029.3623657175. The cubic root of 64470660 is about 400.9781477842.

The spelling of 64470660 in words is "sixty-four million, four hundred seventy thousand, six hundred sixty".