673784894 has 8 divisors (see below), whose sum is σ = 1027246008. Its totient is φ = 331369560.

The previous prime is 673784893. The next prime is 673784899. The reversal of 673784894 is 498487376.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673784893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2761292 + ... + 2761535.

It is an arithmetic number, because the mean of its divisors is an integer number (128405751).

Almost surely, 2^673784894 is an apocalyptic number.

673784894 is a deficient number, since it is larger than the sum of its proper divisors (353461114).

673784894 is a wasteful number, since it uses less digits than its factorization.

673784894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5522890.

The product of its digits is 8128512, while the sum is 56.

The square root of 673784894 is about 25957.3668541322. The cubic root of 673784894 is about 876.6786361878.

The spelling of 673784894 in words is "six hundred seventy-three million, seven hundred eighty-four thousand, eight hundred ninety-four".