64589272 has 64 divisors (see below), whose sum is σ = 137894400. Its totient is φ = 28103040.

The previous prime is 64589251. The next prime is 64589281. The reversal of 64589272 is 27298546.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 270129 + ... + 270367.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^64589272 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 64589272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68947200).

64589272 is an abundant number, since it is smaller than the sum of its proper divisors (73305128).

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

64589272 is a wasteful number, since it uses less digits than its factorization.

64589272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 372 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 64589272 is about 8036.7451122952. The cubic root of 64589272 is about 401.2239013443.

The spelling of 64589272 in words is "sixty-four million, five hundred eighty-nine thousand, two hundred seventy-two".