64286856 has 48 divisors (see below), whose sum is σ = 175107660. Its totient is φ = 21306240.

The previous prime is 64286851. The next prime is 64286857. The reversal of 64286856 is 65868246.

It can be written as a sum of positive squares in 2 ways, for example, as 52794756 + 11492100 = 7266^2 + 3390^2 .

It is not an unprimeable number, because it can be changed into a prime (64286851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10566 + ... + 15498.

Almost surely, 2^64286856 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 64286856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87553830).

64286856 is an abundant number, since it is smaller than the sum of its proper divisors (110820804).

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

64286856 is a wasteful number, since it uses less digits than its factorization.

64286856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126 (or 5119 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 64286856 is about 8017.9084554515. The cubic root of 64286856 is about 400.5967260191.

The spelling of 64286856 in words is "sixty-four million, two hundred eighty-six thousand, eight hundred fifty-six".