673126605 has 20 divisors (see below), whose sum is σ = 1206642492. Its totient is φ = 359000640.

The previous prime is 673126583. The next prime is 673126633. The reversal of 673126605 is 506621376.

It can be written as a sum of positive squares in 2 ways, for example, as 492573636 + 180552969 = 22194^2 + 13437^2 .

It is not a de Polignac number, because 673126605 - 2⁷ = 673126477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673126605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 830616 + ... + 831425.

Almost surely, 2^673126605 is an apocalyptic number.

It is an amenable number.

673126605 is a deficient number, since it is larger than the sum of its proper divisors (533515887).

673126605 is a wasteful number, since it uses less digits than its factorization.

673126605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662058 (or 1662049 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 673126605 is about 25944.6835594501. The cubic root of 673126605 is about 876.3930376458.

The spelling of 673126605 in words is "six hundred seventy-three million, one hundred twenty-six thousand, six hundred five".