672938665 has 8 divisors (see below), whose sum is σ = 922887360. Its totient is φ = 461443632.

The previous prime is 672938611. The next prime is 672938681. The reversal of 672938665 is 566839276.

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

It is a cyclic number.

It is not a de Polignac number, because 672938665 - 2¹¹ = 672936617 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9613375 + ... + 9613444.

It is an arithmetic number, because the mean of its divisors is an integer number (115360920).

Almost surely, 2^672938665 is an apocalyptic number.

It is an amenable number.

672938665 is a deficient number, since it is larger than the sum of its proper divisors (249948695).

672938665 is a wasteful number, since it uses less digits than its factorization.

672938665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19226831.

The product of its digits is 3265920, while the sum is 52.

The square root of 672938665 is about 25941.0613699594. The cubic root of 672938665 is about 876.3114657504.

The spelling of 672938665 in words is "six hundred seventy-two million, nine hundred thirty-eight thousand, six hundred sixty-five".