672043761 has 12 divisors (see below), whose sum is σ = 1002044160. Its totient is φ = 433576440.

The previous prime is 672043759. The next prime is 672043811. The reversal of 672043761 is 167340276.

It is not a de Polignac number, because 672043761 - 2¹ = 672043759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672043721) 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 11 ways as a sum of consecutive naturals, for example, 1204101 + ... + 1204658.

It is an arithmetic number, because the mean of its divisors is an integer number (83503680).

Almost surely, 2^672043761 is an apocalyptic number.

It is an amenable number.

672043761 is a deficient number, since it is larger than the sum of its proper divisors (330000399).

672043761 is a wasteful number, since it uses less digits than its factorization.

672043761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408796 (or 2408793 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 672043761 is about 25923.8068385027. The cubic root of 672043761 is about 875.9228406737.

The spelling of 672043761 in words is "six hundred seventy-two million, forty-three thousand, seven hundred sixty-one".