725843 has 4 divisors (see below), whose sum is σ = 729120. Its totient is φ = 722568.

The previous prime is 725827. The next prime is 725861. The reversal of 725843 is 348527.

It is a happy number.

725843 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 725843 - 2⁴ = 725827 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725843.

It is not an unprimeable number, because it can be changed into a prime (725863) 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, 1280 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (182280).

2⁷²⁵⁸⁴³ is an apocalyptic number.

725843 is a deficient number, since it is larger than the sum of its proper divisors (3277).

725843 is a wasteful number, since it uses less digits than its factorization.

725843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276.

The product of its digits is 6720, while the sum is 29.

The square root of 725843 is about 851.9642011258. The cubic root of 725843 is about 89.8698943119.

It can be divided in two parts, 7 and 25843, that multiplied together give a triangular number (180901 = T₆₀₁).

The spelling of 725843 in words is "seven hundred twenty-five thousand, eight hundred forty-three".