672325281 has 12 divisors (see below), whose sum is σ = 976019200. Its totient is φ = 445963320.

The previous prime is 672325267. The next prime is 672325307. The reversal of 672325281 is 182523276.

It is not a de Polignac number, because 672325281 - 2⁵ = 672325249 is a prime.

It is a super-2 number, since 2×672325281² = 904042566943457922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672325781) 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, 185905 + ... + 189486.

Almost surely, 2^672325281 is an apocalyptic number.

It is an amenable number.

672325281 is a deficient number, since it is larger than the sum of its proper divisors (303693919).

672325281 is a wasteful number, since it uses less digits than its factorization.

672325281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375596 (or 375593 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 672325281 is about 25929.2360280823. The cubic root of 672325281 is about 876.0451320026.

The spelling of 672325281 in words is "six hundred seventy-two million, three hundred twenty-five thousand, two hundred eighty-one".