64270688 has 48 divisors (see below), whose sum is σ = 132701184. Its totient is φ = 30602880.

The previous prime is 64270663. The next prime is 64270709. The reversal of 64270688 is 88607246.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 65981 + ... + 66947.

It is an arithmetic number, because the mean of its divisors is an integer number (2764608).

Almost surely, 2^64270688 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 64270688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66350592).

64270688 is an abundant number, since it is smaller than the sum of its proper divisors (68430496).

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

64270688 is a wasteful number, since it uses less digits than its factorization.

64270688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 64270688 is about 8016.9001490601. The cubic root of 64270688 is about 400.5631401442.

The spelling of 64270688 in words is "sixty-four million, two hundred seventy thousand, six hundred eighty-eight".