672616257 has 16 divisors (see below), whose sum is σ = 905287680. Its totient is φ = 444189312.

The previous prime is 672616249. The next prime is 672616261. The reversal of 672616257 is 752616276.

It is not a de Polignac number, because 672616257 - 2³ = 672616249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672616457) 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 15 ways as a sum of consecutive naturals, for example, 392719 + ... + 394427.

It is an arithmetic number, because the mean of its divisors is an integer number (56580480).

Almost surely, 2^672616257 is an apocalyptic number.

It is an amenable number.

672616257 is a deficient number, since it is larger than the sum of its proper divisors (232671423).

672616257 is a wasteful number, since it uses less digits than its factorization.

672616257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872.

The product of its digits is 211680, while the sum is 42.

The square root of 672616257 is about 25934.8463847388. The cubic root of 672616257 is about 876.1714951141.

The spelling of 672616257 in words is "six hundred seventy-two million, six hundred sixteen thousand, two hundred fifty-seven".