725789 has 2 divisors, whose sum is σ = 725790. Its totient is φ = 725788.

The previous prime is 725749. The next prime is 725801. The reversal of 725789 is 987527.

725789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444889 + 280900 = 667^2 + 530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362894 + 362895.

It is an arithmetic number, because the mean of its divisors is an integer number (362895).

2⁷²⁵⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

725789 is a deficient number, since it is larger than the sum of its proper divisors (1).

725789 is an equidigital number, since it uses as much as digits as its factorization.

725789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 38.

The square root of 725789 is about 851.9325090640. The cubic root of 725789 is about 89.8676655955.

The spelling of 725789 in words is "seven hundred twenty-five thousand, seven hundred eighty-nine".