672065923 has 4 divisors (see below), whose sum is σ = 695240640. Its totient is φ = 648891208.

The previous prime is 672065921. The next prime is 672065939. The reversal of 672065923 is 329560276.

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 672065923 - 2¹ = 672065921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672065921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11587315 + ... + 11587372.

It is an arithmetic number, because the mean of its divisors is an integer number (173810160).

Almost surely, 2^672065923 is an apocalyptic number.

672065923 is a deficient number, since it is larger than the sum of its proper divisors (23174717).

672065923 is a wasteful number, since it uses less digits than its factorization.

672065923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23174716.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 672065923 is about 25924.2342799165. The cubic root of 672065923 is about 875.9324690093.

The spelling of 672065923 in words is "six hundred seventy-two million, sixty-five thousand, nine hundred twenty-three".