825943 has 4 divisors (see below), whose sum is σ = 837648. Its totient is φ = 814240.

The previous prime is 825919. The next prime is 825947. The reversal of 825943 is 349528.

825943 is nontrivially palindromic in base 3.

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 825943 - 2¹⁷ = 694871 is a prime.

It is a Duffinian number.

825943 is a lucky number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5746 + ... + 5887.

It is an arithmetic number, because the mean of its divisors is an integer number (209412).

2⁸²⁵⁹⁴³ is an apocalyptic number.

825943 is a deficient number, since it is larger than the sum of its proper divisors (11705).

825943 is a wasteful number, since it uses less digits than its factorization.

825943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11704.

The product of its digits is 8640, while the sum is 31.

The square root of 825943 is about 908.8140623912. The cubic root of 825943 is about 93.8245936697.

The spelling of 825943 in words is "eight hundred twenty-five thousand, nine hundred forty-three".