725893 has 4 divisors (see below), whose sum is σ = 829600. Its totient is φ = 622188.

The previous prime is 725891. The next prime is 725897. The reversal of 725893 is 398527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 398527 = 37 ⋅10771.

It is not a de Polignac number, because 725893 - 2¹ = 725891 is a prime.

It is a Duffinian number.

725893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725891) 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, 51843 + ... + 51856.

It is an arithmetic number, because the mean of its divisors is an integer number (207400).

2⁷²⁵⁸⁹³ is an apocalyptic number.

It is an amenable number.

725893 is a deficient number, since it is larger than the sum of its proper divisors (103707).

725893 is a wasteful number, since it uses less digits than its factorization.

725893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103706.

The product of its digits is 15120, while the sum is 34.

The square root of 725893 is about 851.9935445765. The cubic root of 725893 is about 89.8719578397.

The spelling of 725893 in words is "seven hundred twenty-five thousand, eight hundred ninety-three".