672421884 has 24 divisors (see below), whose sum is σ = 1571899728. Its totient is φ = 223724160.

The previous prime is 672421847. The next prime is 672421891. The reversal of 672421884 is 488124276.

672421884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45297 + ... + 58280.

It is an arithmetic number, because the mean of its divisors is an integer number (65495822).

Almost surely, 2^672421884 is an apocalyptic number.

It is an amenable number.

672421884 is an abundant number, since it is smaller than the sum of its proper divisors (899477844).

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

672421884 is a wasteful number, since it uses less digits than its factorization.

672421884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104125 (or 104123 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 672421884 is about 25931.0987811932. The cubic root of 672421884 is about 876.0870881496.

The spelling of 672421884 in words is "six hundred seventy-two million, four hundred twenty-one thousand, eight hundred eighty-four".