673774809 has 8 divisors (see below), whose sum is σ = 907088832. Its totient is φ = 444822000.

The previous prime is 673774807. The next prime is 673774819. The reversal of 673774809 is 908477376.

673774809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 673774809 - 2¹ = 673774807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673774807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089942 + ... + 1090559.

It is an arithmetic number, because the mean of its divisors is an integer number (113386104).

Almost surely, 2^673774809 is an apocalyptic number.

It is an amenable number.

673774809 is a deficient number, since it is larger than the sum of its proper divisors (233314023).

673774809 is a wasteful number, since it uses less digits than its factorization.

673774809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180607.

The product of its (nonzero) digits is 1778112, while the sum is 51.

The square root of 673774809 is about 25957.1725925610. The cubic root of 673774809 is about 876.6742622161.

The spelling of 673774809 in words is "six hundred seventy-three million, seven hundred seventy-four thousand, eight hundred nine".