725318677 has 2 divisors, whose sum is σ = 725318678. Its totient is φ = 725318676.

The previous prime is 725318611. The next prime is 725318701. The reversal of 725318677 is 776813527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567916561 + 157402116 = 23831^2 + 12546^2 .

It is a cyclic number.

It is not a de Polignac number, because 725318677 - 2²⁷ = 591100949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725312677) 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, 362659338 + 362659339.

It is an arithmetic number, because the mean of its divisors is an integer number (362659339).

Almost surely, 2^725318677 is an apocalyptic number.

It is an amenable number.

725318677 is a deficient number, since it is larger than the sum of its proper divisors (1).

725318677 is an equidigital number, since it uses as much as digits as its factorization.

725318677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 493920, while the sum is 46.

The square root of 725318677 is about 26931.7410688578. The cubic root of 725318677 is about 898.4824950110.

The spelling of 725318677 in words is "seven hundred twenty-five million, three hundred eighteen thousand, six hundred seventy-seven".