673656597 has 12 divisors (see below), whose sum is σ = 975951340. Its totient is φ = 447769728.

The previous prime is 673656559. The next prime is 673656601. The reversal of 673656597 is 795656376.

673656597 is a `hidden beast` number, since 6 + 73 + 6 + 565 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 332478756 + 341177841 = 18234^2 + 18471^2 .

It is not a de Polignac number, because 673656597 - 2²⁷ = 539438869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673651597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108022 + ... + 114087.

Almost surely, 2^673656597 is an apocalyptic number.

It is an amenable number.

673656597 is a deficient number, since it is larger than the sum of its proper divisors (302294743).

673656597 is a wasteful number, since it uses less digits than its factorization.

673656597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222452 (or 222449 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 54.

The square root of 673656597 is about 25954.8954341951. The cubic root of 673656597 is about 876.6229891608.

The spelling of 673656597 in words is "six hundred seventy-three million, six hundred fifty-six thousand, five hundred ninety-seven".