725785 has 8 divisors (see below), whose sum is σ = 875520. Its totient is φ = 577584.

The previous prime is 725749. The next prime is 725789. The reversal of 725785 is 587527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725785 - 2⁹ = 725273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725785.

It is not an unprimeable number, because it can be changed into a prime (725789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1704 + ... + 2086.

It is an arithmetic number, because the mean of its divisors is an integer number (109440).

2⁷²⁵⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

725785 is a deficient number, since it is larger than the sum of its proper divisors (149735).

725785 is a wasteful number, since it uses less digits than its factorization.

725785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767.

The product of its digits is 19600, while the sum is 34.

The square root of 725785 is about 851.9301614569. The cubic root of 725785 is about 89.8675005010.

The spelling of 725785 in words is "seven hundred twenty-five thousand, seven hundred eighty-five".