672318845 has 8 divisors (see below), whose sum is σ = 880126560. Its totient is φ = 488959120.

The previous prime is 672318827. The next prime is 672318853. The reversal of 672318845 is 548813276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 672318845 - 2¹² = 672314749 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 672318796 and 672318805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6111935 + ... + 6112044.

It is an arithmetic number, because the mean of its divisors is an integer number (110015820).

Almost surely, 2^672318845 is an apocalyptic number.

It is an amenable number.

672318845 is a deficient number, since it is larger than the sum of its proper divisors (207807715).

672318845 is a wasteful number, since it uses less digits than its factorization.

672318845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12223995.

The product of its digits is 322560, while the sum is 44.

The square root of 672318845 is about 25929.1119207735. Note that the first 3 decimals coincide. The cubic root of 672318845 is about 876.0423366075.

The spelling of 672318845 in words is "six hundred seventy-two million, three hundred eighteen thousand, eight hundred forty-five".