725716 has 12 divisors (see below), whose sum is σ = 1275988. Its totient is φ = 361152.

The previous prime is 725687. The next prime is 725723. The reversal of 725716 is 617527.

It can be written as a sum of positive squares in 2 ways, for example, as 562500 + 163216 = 750^2 + 404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1360 + ... + 1816.

2⁷²⁵⁷¹⁶ is an apocalyptic number.

It is an amenable number.

725716 is a deficient number, since it is larger than the sum of its proper divisors (550272).

725716 is a wasteful number, since it uses less digits than its factorization.

725716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 856 counting only the distinct ones).

The product of its digits is 2940, while the sum is 28.

The square root of 725716 is about 851.8896642171. The cubic root of 725716 is about 89.8646525253.

It can be divided in two parts, 725 and 716, that added together give a palindrome (1441).

The spelling of 725716 in words is "seven hundred twenty-five thousand, seven hundred sixteen".