765725 has 12 divisors (see below), whose sum is σ = 961620. Its totient is φ = 604800.

The previous prime is 765707. The next prime is 765727. The reversal of 765725 is 527567.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1849 + 763876 = 43^2 + 874^2 .

It is a de Polignac number, because none of the positive numbers 2^k-765725 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 765691 and 765700.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 765725.

It is not an unprimeable number, because it can be changed into a prime (765727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2585 + ... + 2865.

It is an arithmetic number, because the mean of its divisors is an integer number (80135).

2⁷⁶⁵⁷²⁵ is an apocalyptic number.

It is an amenable number.

765725 is a deficient number, since it is larger than the sum of its proper divisors (195895).

765725 is a wasteful number, since it uses less digits than its factorization.

765725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 395 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 765725 is about 875.0571409914. The cubic root of 765725 is about 91.4866254950.

The spelling of 765725 in words is "seven hundred sixty-five thousand, seven hundred twenty-five".