725492693 has 2 divisors, whose sum is σ = 725492694. Its totient is φ = 725492692.

The previous prime is 725492653. The next prime is 725492699. The reversal of 725492693 is 396294527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 710915569 + 14577124 = 26663^2 + 3818^2 .

It is an emirp because it is prime and its reverse (396294527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725492693 - 2⁸ = 725492437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725492699) 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, 362746346 + 362746347.

It is an arithmetic number, because the mean of its divisors is an integer number (362746347).

Almost surely, 2^725492693 is an apocalyptic number.

It is an amenable number.

725492693 is a deficient number, since it is larger than the sum of its proper divisors (1).

725492693 is an equidigital number, since it uses as much as digits as its factorization.

725492693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 47.

The square root of 725492693 is about 26934.9715611508. The cubic root of 725492693 is about 898.5543428910.

The spelling of 725492693 in words is "seven hundred twenty-five million, four hundred ninety-two thousand, six hundred ninety-three".