64752858 has 40 divisors (see below), whose sum is σ = 148648500. Its totient is φ = 21055680.

The previous prime is 64752833. The next prime is 64752859. The reversal of 64752858 is 85825746.

It can be written as a sum of positive squares in 2 ways, for example, as 50936769 + 13816089 = 7137^2 + 3717^2 .

It is not an unprimeable number, because it can be changed into a prime (64752859) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1768 + ... + 11516.

Almost surely, 2^64752858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64752858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74324250).

64752858 is an abundant number, since it is smaller than the sum of its proper divisors (83895642).

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

64752858 is a wasteful number, since it uses less digits than its factorization.

64752858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9804 (or 9795 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 64752858 is about 8046.9160552351. The cubic root of 64752858 is about 401.5623439254.

The spelling of 64752858 in words is "sixty-four million, seven hundred fifty-two thousand, eight hundred fifty-eight".