673426597 has 2 divisors, whose sum is σ = 673426598. Its totient is φ = 673426596.

The previous prime is 673426583. The next prime is 673426657. The reversal of 673426597 is 795624376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538889796 + 134536801 = 23214^2 + 11599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673426597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673426597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673426997) by changing a digit.

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 as a sum of consecutive naturals, namely, 336713298 + 336713299.

It is an arithmetic number, because the mean of its divisors is an integer number (336713299).

Almost surely, 2^673426597 is an apocalyptic number.

It is an amenable number.

673426597 is a deficient number, since it is larger than the sum of its proper divisors (1).

673426597 is an equidigital number, since it uses as much as digits as its factorization.

673426597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 49.

The square root of 673426597 is about 25950.4642925710. The cubic root of 673426597 is about 876.5232121929.

The spelling of 673426597 in words is "six hundred seventy-three million, four hundred twenty-six thousand, five hundred ninety-seven".