673273989 has 6 divisors (see below), whose sum is σ = 972506886. Its totient is φ = 448849320.

The previous prime is 673273943. The next prime is 673274011. The reversal of 673273989 is 989372376.

It can be written as a sum of positive squares in only one way, i.e., 367373889 + 305900100 = 19167^2 + 17490^2 .

It is not a de Polignac number, because 673273989 - 2¹² = 673269893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673273589) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37404102 + ... + 37404119.

It is an arithmetic number, because the mean of its divisors is an integer number (162084481).

Almost surely, 2^673273989 is an apocalyptic number.

It is an amenable number.

673273989 is a deficient number, since it is larger than the sum of its proper divisors (299232897).

673273989 is a wasteful number, since it uses less digits than its factorization.

673273989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74808227 (or 74808224 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 673273989 is about 25947.5237546861. The cubic root of 673273989 is about 876.4569963348.

The spelling of 673273989 in words is "six hundred seventy-three million, two hundred seventy-three thousand, nine hundred eighty-nine".