673132780 has 12 divisors (see below), whose sum is σ = 1413578880. Its totient is φ = 269253104.

The previous prime is 673132777. The next prime is 673132843. The reversal of 673132780 is 87231376.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16828300 + ... + 16828339.

It is an arithmetic number, because the mean of its divisors is an integer number (117798240).

Almost surely, 2^673132780 is an apocalyptic number.

It is an amenable number.

673132780 is an abundant number, since it is smaller than the sum of its proper divisors (740446100).

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

673132780 is a wasteful number, since it uses less digits than its factorization.

673132780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33656648 (or 33656646 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 673132780 is about 25944.8025623630. The cubic root of 673132780 is about 876.3957175332.

The spelling of 673132780 in words is "six hundred seventy-three million, one hundred thirty-two thousand, seven hundred eighty".