672855506 has 12 divisors (see below), whose sum is σ = 1045288842. Its totient is φ = 324825984.

The previous prime is 672855503. The next prime is 672855523. The reversal of 672855506 is 605558276.

672855506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 592484281 + 80371225 = 24341^2 + 8965^2 .

It is not an unprimeable number, because it can be changed into a prime (672855503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198335 + ... + 201698.

Almost surely, 2^672855506 is an apocalyptic number.

672855506 is a deficient number, since it is larger than the sum of its proper divisors (372433336).

672855506 is a wasteful number, since it uses less digits than its factorization.

672855506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400093 (or 400064 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The square root of 672855506 is about 25939.4584754578. The cubic root of 672855506 is about 876.2753672712.

The spelling of 672855506 in words is "six hundred seventy-two million, eight hundred fifty-five thousand, five hundred six".