725691727 has 2 divisors, whose sum is σ = 725691728. Its totient is φ = 725691726.

The previous prime is 725691691. The next prime is 725691731. The reversal of 725691727 is 727196527.

725691727 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 725691727 - 2⁷ = 725691599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725691787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362845863 + 362845864.

It is an arithmetic number, because the mean of its divisors is an integer number (362845864).

Almost surely, 2^725691727 is an apocalyptic number.

725691727 is a deficient number, since it is larger than the sum of its proper divisors (1).

725691727 is an equidigital number, since it uses as much as digits as its factorization.

725691727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 46.

The square root of 725691727 is about 26938.6660211674. Note that the first 3 decimals coincide. The cubic root of 725691727 is about 898.6365061412.

The spelling of 725691727 in words is "seven hundred twenty-five million, six hundred ninety-one thousand, seven hundred twenty-seven".