673421674 has 24 divisors (see below), whose sum is σ = 1071013860. Its totient is φ = 317518272.

The previous prime is 673421647. The next prime is 673421681. The reversal of 673421674 is 476124376.

It can be written as a sum of positive squares in 2 ways, for example, as 672624225 + 797449 = 25935^2 + 893^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163302 + ... + 167374.

Almost surely, 2^673421674 is an apocalyptic number.

673421674 is a deficient number, since it is larger than the sum of its proper divisors (397592186).

673421674 is a wasteful number, since it uses less digits than its factorization.

673421674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342 (or 4323 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 673421674 is about 25950.3694386034. The cubic root of 673421674 is about 876.5210762836.

The spelling of 673421674 in words is "six hundred seventy-three million, four hundred twenty-one thousand, six hundred seventy-four".