673565593 has 2 divisors, whose sum is σ = 673565594. Its totient is φ = 673565592.

The previous prime is 673565587. The next prime is 673565621. The reversal of 673565593 is 395565376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605799769 + 67765824 = 24613^2 + 8232^2 .

It is a cyclic number.

It is not a de Polignac number, because 673565593 - 2²⁵ = 640011161 is a prime.

It is equal to p_34953889 and since 673565593 and 34953889 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (673565533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336782796 + 336782797.

It is an arithmetic number, because the mean of its divisors is an integer number (336782797).

Almost surely, 2^673565593 is an apocalyptic number.

It is an amenable number.

673565593 is a deficient number, since it is larger than the sum of its proper divisors (1).

673565593 is an equidigital number, since it uses as much as digits as its factorization.

673565593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2551500, while the sum is 49.

The square root of 673565593 is about 25953.1422567673. The cubic root of 673565593 is about 876.5835131669.

The spelling of 673565593 in words is "six hundred seventy-three million, five hundred sixty-five thousand, five hundred ninety-three".