725707 has 4 divisors (see below), whose sum is σ = 727560. Its totient is φ = 723856.

The previous prime is 725687. The next prime is 725723. The reversal of 725707 is 707527.

It is a happy number.

725707 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.

It is a cyclic number.

It is not a de Polignac number, because 725707 - 2⁷ = 725579 is a prime.

It is a Duffinian number.

725707 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (725737) 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, 82 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (181890).

2⁷²⁵⁷⁰⁷ is an apocalyptic number.

725707 is a deficient number, since it is larger than the sum of its proper divisors (1853).

725707 is a wasteful number, since it uses less digits than its factorization.

725707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852.

The product of its (nonzero) digits is 3430, while the sum is 28.

The square root of 725707 is about 851.8843818265. The cubic root of 725707 is about 89.8642810370.

The spelling of 725707 in words is "seven hundred twenty-five thousand, seven hundred seven".