673730089 has 8 divisors (see below), whose sum is σ = 682956360. Its totient is φ = 664540800.

The previous prime is 673730023. The next prime is 673730093. The reversal of 673730089 is 980037376.

It can be written as a sum of positive squares in 4 ways, for example, as 33235225 + 640494864 = 5765^2 + 25308^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673730089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673730389) 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 in 7 ways as a sum of consecutive naturals, for example, 28479 + ... + 46459.

It is an arithmetic number, because the mean of its divisors is an integer number (85369545).

Almost surely, 2^673730089 is an apocalyptic number.

It is an amenable number.

673730089 is a deficient number, since it is larger than the sum of its proper divisors (9226271).

673730089 is a wasteful number, since it uses less digits than its factorization.

673730089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18491.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 673730089 is about 25956.3111593308. The cubic root of 673730089 is about 876.6548661509.

The spelling of 673730089 in words is "six hundred seventy-three million, seven hundred thirty thousand, eighty-nine".