725768 has 16 divisors (see below), whose sum is σ = 1369980. Its totient is φ = 360448.

The previous prime is 725749. The next prime is 725789. The reversal of 725768 is 867527.

It can be written as a sum of positive squares in 2 ways, for example, as 669124 + 56644 = 818^2 + 238^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1880 + ... + 2232.

2⁷²⁵⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

725768 is a deficient number, since it is larger than the sum of its proper divisors (644212).

725768 is a wasteful number, since it uses less digits than its factorization.

725768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 612 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 725768 is about 851.9201840548. The cubic root of 725768 is about 89.8667988426.

The spelling of 725768 in words is "seven hundred twenty-five thousand, seven hundred sixty-eight".