672845459 has 16 divisors (see below), whose sum is σ = 791669760. Its totient is φ = 563772960.

The previous prime is 672845419. The next prime is 672845471. The reversal of 672845459 is 954548276.

It is a cyclic number.

It is not a de Polignac number, because 672845459 - 2²⁰ = 671796883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672845419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102494 + ... + 108860.

It is an arithmetic number, because the mean of its divisors is an integer number (49479360).

Almost surely, 2^672845459 is an apocalyptic number.

672845459 is a deficient number, since it is larger than the sum of its proper divisors (118824301).

672845459 is a wasteful number, since it uses less digits than its factorization.

672845459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130.

The product of its digits is 2419200, while the sum is 50.

The square root of 672845459 is about 25939.2648122494. The cubic root of 672845459 is about 876.2710057690.

The spelling of 672845459 in words is "six hundred seventy-two million, eight hundred forty-five thousand, four hundred fifty-nine".