65923722 has 48 divisors (see below), whose sum is σ = 152864712. Its totient is φ = 20459520.

The previous prime is 65923721. The next prime is 65923733. The reversal of 65923722 is 22732956.

It can be written as a sum of positive squares in 4 ways, for example, as 63824121 + 2099601 = 7989^2 + 1449^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (65923721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28572 + ... + 30792.

Almost surely, 2^65923722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65923722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76432356).

65923722 is an abundant number, since it is smaller than the sum of its proper divisors (86940990).

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

65923722 is a wasteful number, since it uses less digits than its factorization.

65923722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343 (or 2340 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 65923722 is about 8119.3424610617. The cubic root of 65923722 is about 403.9682563367.

The spelling of 65923722 in words is "sixty-five million, nine hundred twenty-three thousand, seven hundred twenty-two".