725689711 has 4 divisors (see below), whose sum is σ = 725743800. Its totient is φ = 725635624.

The previous prime is 725689703. The next prime is 725689739. The reversal of 725689711 is 117986527.

It is a happy number.

725689711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 725689711 - 2³ = 725689703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725689751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9945 + ... + 39373.

It is an arithmetic number, because the mean of its divisors is an integer number (181435950).

Almost surely, 2^725689711 is an apocalyptic number.

725689711 is a deficient number, since it is larger than the sum of its proper divisors (54089).

725689711 is a wasteful number, since it uses less digits than its factorization.

725689711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54088.

The product of its digits is 211680, while the sum is 46.

The square root of 725689711 is about 26938.6286028075. The cubic root of 725689711 is about 898.6356739913.

The spelling of 725689711 in words is "seven hundred twenty-five million, six hundred eighty-nine thousand, seven hundred eleven".