65699323 has 16 divisors (see below), whose sum is σ = 69529600. Its totient is φ = 62000640.

The previous prime is 65699311. The next prime is 65699341. The reversal of 65699323 is 32399656.

It is a cyclic number.

It is not a de Polignac number, because 65699323 - 2²¹ = 63602171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65699323.

It is not an unprimeable number, because it can be changed into a prime (65699363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340315 + ... + 340507.

It is an arithmetic number, because the mean of its divisors is an integer number (4345600).

Almost surely, 2^65699323 is an apocalyptic number.

65699323 is a deficient number, since it is larger than the sum of its proper divisors (3830277).

65699323 is a wasteful number, since it uses less digits than its factorization.

65699323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its digits is 262440, while the sum is 43.

The square root of 65699323 is about 8105.5118900659. The cubic root of 65699323 is about 403.5093768918.

The spelling of 65699323 in words is "sixty-five million, six hundred ninety-nine thousand, three hundred twenty-three".