65707722 has 12 divisors (see below), whose sum is σ = 142366770. Its totient is φ = 21902568.

The previous prime is 65707709. The next prime is 65707723. The reversal of 65707722 is 22770756.

It can be written as a sum of positive squares in only one way, i.e., 53450721 + 12257001 = 7311^2 + 3501^2 .

It is not an unprimeable number, because it can be changed into a prime (65707723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1825197 + ... + 1825232.

Almost surely, 2^65707722 is an apocalyptic number.

65707722 is an abundant number, since it is smaller than the sum of its proper divisors (76659048).

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

65707722 is a wasteful number, since it uses less digits than its factorization.

65707722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650437 (or 3650434 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 65707722 is about 8106.0299777388. The cubic root of 65707722 is about 403.5265710357.

The spelling of 65707722 in words is "sixty-five million, seven hundred seven thousand, seven hundred twenty-two".