672290065 has 4 divisors (see below), whose sum is σ = 806748084. Its totient is φ = 537832048.

The previous prime is 672290039. The next prime is 672290071. The reversal of 672290065 is 560092276.

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

It can be written as a sum of positive squares in 2 ways, for example, as 298563841 + 373726224 = 17279^2 + 19332^2 .

It is a cyclic number.

It is not a de Polignac number, because 672290065 - 2²⁹ = 135419153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67229002 + ... + 67229011.

It is an arithmetic number, because the mean of its divisors is an integer number (201687021).

Almost surely, 2^672290065 is an apocalyptic number.

It is an amenable number.

672290065 is a deficient number, since it is larger than the sum of its proper divisors (134458019).

672290065 is a wasteful number, since it uses less digits than its factorization.

672290065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134458018.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 672290065 is about 25928.5569401770. The cubic root of 672290065 is about 876.0298361605.

The spelling of 672290065 in words is "six hundred seventy-two million, two hundred ninety thousand, sixty-five".