673670637 has 24 divisors (see below), whose sum is σ = 1006948800. Its totient is φ = 433718208.

The previous prime is 673670633. The next prime is 673670639. The reversal of 673670637 is 736076376.

673670637 is a `hidden beast` number, since 6 + 7 + 3 + 6 + 7 + 0 + 637 = 666.

It is not a de Polignac number, because 673670637 - 2² = 673670633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 673670592 and 673670601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673670633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24664 + ... + 44222.

It is an arithmetic number, because the mean of its divisors is an integer number (41956200).

Almost surely, 2^673670637 is an apocalyptic number.

It is an amenable number.

673670637 is a deficient number, since it is larger than the sum of its proper divisors (333278163).

673670637 is a wasteful number, since it uses less digits than its factorization.

673670637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19697 (or 19694 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 45.

The square root of 673670637 is about 25955.1659019934. The cubic root of 673670637 is about 876.6290791584.

The spelling of 673670637 in words is "six hundred seventy-three million, six hundred seventy thousand, six hundred thirty-seven".