673615589 has 2 divisors, whose sum is σ = 673615590. Its totient is φ = 673615588.

The previous prime is 673615583. The next prime is 673615643. The reversal of 673615589 is 985516376.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657050689 + 16564900 = 25633^2 + 4070^2 .

It is a cyclic number.

It is not a de Polignac number, because 673615589 - 2⁸ = 673615333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673615583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336807794 + 336807795.

It is an arithmetic number, because the mean of its divisors is an integer number (336807795).

Almost surely, 2^673615589 is an apocalyptic number.

It is an amenable number.

673615589 is a deficient number, since it is larger than the sum of its proper divisors (1).

673615589 is an equidigital number, since it uses as much as digits as its factorization.

673615589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 50.

The square root of 673615589 is about 25954.1054363274. The cubic root of 673615589 is about 876.6052010250.

The spelling of 673615589 in words is "six hundred seventy-three million, six hundred fifteen thousand, five hundred eighty-nine".