672909880 has 32 divisors (see below), whose sum is σ = 1514829600. Its totient is φ = 269024896.

The previous prime is 672909869. The next prime is 672909883. The reversal of 672909880 is 88909276.

It is a happy number.

It is a super-2 number, since 2×672909880² = 905615413203228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672909883) 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 7 ways as a sum of consecutive naturals, for example, 113469 + ... + 119251.

It is an arithmetic number, because the mean of its divisors is an integer number (47338425).

Almost surely, 2^672909880 is an apocalyptic number.

It is an amenable number.

672909880 is an abundant number, since it is smaller than the sum of its proper divisors (841919720).

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

672909880 is a wasteful number, since it uses less digits than its factorization.

672909880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8703 (or 8699 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 672909880 is about 25940.5065486393. The cubic root of 672909880 is about 876.2989708102.

The spelling of 672909880 in words is "six hundred seventy-two million, nine hundred nine thousand, eight hundred eighty".