725447 has 2 divisors, whose sum is σ = 725448. Its totient is φ = 725446.

The previous prime is 725437. The next prime is 725449. The reversal of 725447 is 744527.

725447 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 is a cyclic number.

It is not a de Polignac number, because 725447 - 2¹² = 721351 is a prime.

Together with 725449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725447.

It is not a weakly prime, because it can be changed into another prime (725449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362723 + 362724.

It is an arithmetic number, because the mean of its divisors is an integer number (362724).

2⁷²⁵⁴⁴⁷ is an apocalyptic number.

725447 is a deficient number, since it is larger than the sum of its proper divisors (1).

725447 is an equidigital number, since it uses as much as digits as its factorization.

725447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 29.

The square root of 725447 is about 851.7317652876. The cubic root of 725447 is about 89.8535478237.

The spelling of 725447 in words is "seven hundred twenty-five thousand, four hundred forty-seven".