65979227 has 4 divisors (see below), whose sum is σ = 69860376. Its totient is φ = 62098080.

The previous prime is 65979217. The next prime is 65979239. The reversal of 65979227 is 72297956.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65979227 - 2⁶ = 65979163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65979217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940549 + ... + 1940582.

It is an arithmetic number, because the mean of its divisors is an integer number (17465094).

Almost surely, 2^65979227 is an apocalyptic number.

65979227 is a deficient number, since it is larger than the sum of its proper divisors (3881149).

65979227 is a wasteful number, since it uses less digits than its factorization.

65979227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881148.

The product of its digits is 476280, while the sum is 47.

The square root of 65979227 is about 8122.7598142503. The cubic root of 65979227 is about 404.0815992906.

The spelling of 65979227 in words is "sixty-five million, nine hundred seventy-nine thousand, two hundred twenty-seven".