65318724 has 45 divisors (see below), whose sum is σ = 171137197. Its totient is φ = 21724416.

The previous prime is 65318683. The next prime is 65318749. The reversal of 65318724 is 42781356.

The square root of 65318724 is 8082.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 39917124 + 25401600 = 6318^2 + 5040^2 .

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 145252 + ... + 145700.

Almost surely, 2^65318724 is an apocalyptic number.

65318724 is the 8082-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65318724

65318724 is an abundant number, since it is smaller than the sum of its proper divisors (105818473).

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

65318724 is an equidigital number, since it uses as much as digits as its factorization.

65318724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 454 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The cubic root of 65318724 is about 402.7286850345.

Multiplying 65318724 by its sum of digits (36), we get a square (2351474064 = 48492²).

65318724 divided by its sum of digits (36) gives a square (1814409 = 1347²).

The spelling of 65318724 in words is "sixty-five million, three hundred eighteen thousand, seven hundred twenty-four".