64723752 has 64 divisors (see below), whose sum is σ = 182112000. Its totient is φ = 21295872.

The previous prime is 64723739. The next prime is 64723781. The reversal of 64723752 is 25732746.

It is a happy number.

64723752 is a `hidden beast` number, since 647 + 2 + 3 + 7 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 15168 + ... + 18960.

It is an arithmetic number, because the mean of its divisors is an integer number (2845500).

Almost surely, 2^64723752 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 64723752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91056000).

64723752 is an abundant number, since it is smaller than the sum of its proper divisors (117388248).

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

64723752 is a wasteful number, since it uses less digits than its factorization.

64723752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887 (or 3877 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 64723752 is about 8045.1073330317. The cubic root of 64723752 is about 401.5021683306.

The spelling of 64723752 in words is "sixty-four million, seven hundred twenty-three thousand, seven hundred fifty-two".