672844956 has 48 divisors (see below), whose sum is σ = 1852139520. Its totient is φ = 186039360.

The previous prime is 672844943. The next prime is 672844957. The reversal of 672844956 is 659448276.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 672844899 and 672844908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672844957) 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, 126591 + ... + 131798.

It is an arithmetic number, because the mean of its divisors is an integer number (38586240).

Almost surely, 2^672844956 is an apocalyptic number.

It is an amenable number.

672844956 is an abundant number, since it is smaller than the sum of its proper divisors (1179294564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672844956 is a wasteful number, since it uses less digits than its factorization.

672844956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258434 (or 258432 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The square root of 672844956 is about 25939.2551165218. The cubic root of 672844956 is about 876.2707874106.

The spelling of 672844956 in words is "six hundred seventy-two million, eight hundred forty-four thousand, nine hundred fifty-six".