672563900 has 72 divisors (see below), whose sum is σ = 1541568000. Its totient is φ = 253990080.

The previous prime is 672563873. The next prime is 672563921. The reversal of 672563900 is 9365276.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 909731 + ... + 910469.

Almost surely, 2^672563900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672563900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770784000).

672563900 is an abundant number, since it is smaller than the sum of its proper divisors (869004100).

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

672563900 is a wasteful number, since it uses less digits than its factorization.

672563900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 672563900 is about 25933.8369702595. The cubic root of 672563900 is about 876.1487605554.

The spelling of 672563900 in words is "six hundred seventy-two million, five hundred sixty-three thousand, nine hundred".