673998593 has 2 divisors, whose sum is σ = 673998594. Its totient is φ = 673998592.

The previous prime is 673998587. The next prime is 673998613. The reversal of 673998593 is 395899376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532317184 + 141681409 = 23072^2 + 11903^2 .

It is a cyclic number.

It is not a de Polignac number, because 673998593 - 2²⁶ = 606889729 is a prime.

It is not a weakly prime, because it can be changed into another prime (673998293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336999296 + 336999297.

It is an arithmetic number, because the mean of its divisors is an integer number (336999297).

Almost surely, 2^673998593 is an apocalyptic number.

It is an amenable number.

673998593 is a deficient number, since it is larger than the sum of its proper divisors (1).

673998593 is an equidigital number, since it uses as much as digits as its factorization.

673998593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11022480, while the sum is 59.

The square root of 673998593 is about 25961.4828736727. The cubic root of 673998593 is about 876.7713094563.

The spelling of 673998593 in words is "six hundred seventy-three million, nine hundred ninety-eight thousand, five hundred ninety-three".