65972267 has 4 divisors (see below), whose sum is σ = 66015936. Its totient is φ = 65928600.

The previous prime is 65972251. The next prime is 65972279. The reversal of 65972267 is 76227956.

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 65972267 - 2⁴ = 65972251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65972167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19484 + ... + 22617.

It is an arithmetic number, because the mean of its divisors is an integer number (16503984).

Almost surely, 2^65972267 is an apocalyptic number.

65972267 is a deficient number, since it is larger than the sum of its proper divisors (43669).

65972267 is a wasteful number, since it uses less digits than its factorization.

65972267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43668.

The product of its digits is 317520, while the sum is 44.

The square root of 65972267 is about 8122.3313771355. The cubic root of 65972267 is about 404.0673902384.

The spelling of 65972267 in words is "sixty-five million, nine hundred seventy-two thousand, two hundred sixty-seven".