725658607 has 2 divisors, whose sum is σ = 725658608. Its totient is φ = 725658606.

The previous prime is 725658589. The next prime is 725658667. The reversal of 725658607 is 706856527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725658607 - 2²³ = 717269999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725658667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362829303 + 362829304.

It is an arithmetic number, because the mean of its divisors is an integer number (362829304).

Almost surely, 2^725658607 is an apocalyptic number.

725658607 is a deficient number, since it is larger than the sum of its proper divisors (1).

725658607 is an equidigital number, since it uses as much as digits as its factorization.

725658607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 46.

The square root of 725658607 is about 26938.0512843821. The cubic root of 725658607 is about 898.6228349119.

The spelling of 725658607 in words is "seven hundred twenty-five million, six hundred fifty-eight thousand, six hundred seven".