725836 has 6 divisors (see below), whose sum is σ = 1270220. Its totient is φ = 362916.

The previous prime is 725827. The next prime is 725861. The reversal of 725836 is 638527.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 725798 and 725807.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90726 + ... + 90733.

2⁷²⁵⁸³⁶ is an apocalyptic number.

It is an amenable number.

725836 is a deficient number, since it is larger than the sum of its proper divisors (544384).

725836 is a wasteful number, since it uses less digits than its factorization.

725836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181463 (or 181461 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 725836 is about 851.9600929621. The cubic root of 725836 is about 89.8696054105.

The spelling of 725836 in words is "seven hundred twenty-five thousand, eight hundred thirty-six".