673816782 has 16 divisors (see below), whose sum is σ = 1348300800. Its totient is φ = 224494392.

The previous prime is 673816729. The next prime is 673816883. The reversal of 673816782 is 287618376.

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, 14158 + ... + 39345.

It is an arithmetic number, because the mean of its divisors is an integer number (84268800).

Almost surely, 2^673816782 is an apocalyptic number.

673816782 is an abundant number, since it is smaller than the sum of its proper divisors (674484018).

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

673816782 is a wasteful number, since it uses less digits than its factorization.

673816782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55607.

The product of its digits is 677376, while the sum is 48.

The square root of 673816782 is about 25957.9810848224. The cubic root of 673816782 is about 876.6924660652.

The spelling of 673816782 in words is "six hundred seventy-three million, eight hundred sixteen thousand, seven hundred eighty-two".