672326865 has 64 divisors (see below), whose sum is σ = 1413158400. Its totient is φ = 296739072.

The previous prime is 672326849. The next prime is 672326867. The reversal of 672326865 is 568623276.

It is a happy number.

It is not a de Polignac number, because 672326865 - 2⁴ = 672326849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 672326865.

It is not an unprimeable number, because it can be changed into a prime (672326867) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15139 + ... + 39671.

It is an arithmetic number, because the mean of its divisors is an integer number (22080600).

Almost surely, 2^672326865 is an apocalyptic number.

It is an amenable number.

672326865 is an abundant number, since it is smaller than the sum of its proper divisors (740831535).

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

672326865 is a wasteful number, since it uses less digits than its factorization.

672326865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24583 (or 24577 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 672326865 is about 25929.2665727359. The cubic root of 672326865 is about 876.0458199902.

The spelling of 672326865 in words is "six hundred seventy-two million, three hundred twenty-six thousand, eight hundred sixty-five".