672844500 has 72 divisors (see below), whose sum is σ = 2122614312. Its totient is φ = 179424000.

The previous prime is 672844499. The next prime is 672844517. The reversal of 672844500 is 5448276.

672844500 is a `hidden beast` number, since 6 + 72 + 84 + 4 + 500 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5035536 + 667808964 = 2244^2 + 25842^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 70261 + ... + 79260.

Almost surely, 2^672844500 is an apocalyptic number.

672844500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672844500 is an abundant number, since it is smaller than the sum of its proper divisors (1449769812).

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

672844500 is a wasteful number, since it uses less digits than its factorization.

672844500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149546 (or 149531 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 672844500 is about 25939.2463267536. The cubic root of 672844500 is about 876.2705894553.

The spelling of 672844500 in words is "six hundred seventy-two million, eight hundred forty-four thousand, five hundred".