673888459 has 4 divisors (see below), whose sum is σ = 673962480. Its totient is φ = 673814440.

The previous prime is 673888451. The next prime is 673888469. The reversal of 673888459 is 954888376.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 673888459 - 2³ = 673888451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673888451) 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, 21064 + ... + 42325.

It is an arithmetic number, because the mean of its divisors is an integer number (168490620).

Almost surely, 2^673888459 is an apocalyptic number.

673888459 is a deficient number, since it is larger than the sum of its proper divisors (74021).

673888459 is a wasteful number, since it uses less digits than its factorization.

673888459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74020.

The product of its digits is 11612160, while the sum is 58.

The square root of 673888459 is about 25959.3616832156. The cubic root of 673888459 is about 876.7235509038.

The spelling of 673888459 in words is "six hundred seventy-three million, eight hundred eighty-eight thousand, four hundred fifty-nine".