725934173 has 2 divisors, whose sum is σ = 725934174. Its totient is φ = 725934172.

The previous prime is 725934149. The next prime is 725934179. The reversal of 725934173 is 371439527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698914969 + 27019204 = 26437^2 + 5198^2 .

It is a cyclic number.

It is not a de Polignac number, because 725934173 - 2¹⁰ = 725933149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725934173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725934179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362967086 + 362967087.

It is an arithmetic number, because the mean of its divisors is an integer number (362967087).

Almost surely, 2^725934173 is an apocalyptic number.

It is an amenable number.

725934173 is a deficient number, since it is larger than the sum of its proper divisors (1).

725934173 is an equidigital number, since it uses as much as digits as its factorization.

725934173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 41.

The square root of 725934173 is about 26943.1656083690. The cubic root of 725934173 is about 898.7365700113.

The spelling of 725934173 in words is "seven hundred twenty-five million, nine hundred thirty-four thousand, one hundred seventy-three".