672831518 has 4 divisors (see below), whose sum is σ = 1009247280. Its totient is φ = 336415758.

The previous prime is 672831517. The next prime is 672831521. The reversal of 672831518 is 815138276.

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

It is a super-2 number, since 2×672831518² = 905404503228368648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672831517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168207878 + ... + 168207881.

It is an arithmetic number, because the mean of its divisors is an integer number (252311820).

Almost surely, 2^672831518 is an apocalyptic number.

672831518 is a deficient number, since it is larger than the sum of its proper divisors (336415762).

672831518 is a wasteful number, since it uses less digits than its factorization.

672831518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336415761.

The product of its digits is 80640, while the sum is 41.

The square root of 672831518 is about 25938.9960869730. The cubic root of 672831518 is about 876.2649537708.

The spelling of 672831518 in words is "six hundred seventy-two million, eight hundred thirty-one thousand, five hundred eighteen".