725711843 has 2 divisors, whose sum is σ = 725711844. Its totient is φ = 725711842.

The previous prime is 725711813. The next prime is 725711869. The reversal of 725711843 is 348117527.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725711843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725711797 and 725711806.

It is not a weakly prime, because it can be changed into another prime (725711813) 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, 362855921 + 362855922.

It is an arithmetic number, because the mean of its divisors is an integer number (362855922).

Almost surely, 2^725711843 is an apocalyptic number.

725711843 is a deficient number, since it is larger than the sum of its proper divisors (1).

725711843 is an equidigital number, since it uses as much as digits as its factorization.

725711843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 38.

The square root of 725711843 is about 26939.0393852491. The cubic root of 725711843 is about 898.6448093937.

The spelling of 725711843 in words is "seven hundred twenty-five million, seven hundred eleven thousand, eight hundred forty-three".