825881 has 8 divisors (see below), whose sum is σ = 952320. Its totient is φ = 701568.

The previous prime is 825857. The next prime is 825883. The reversal of 825881 is 188528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-825881 is a prime.

It is a super-2 number, since 2×825881² = 1364158852322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425 + ... + 1353.

It is an arithmetic number, because the mean of its divisors is an integer number (119040).

2⁸²⁵⁸⁸¹ is an apocalyptic number.

It is an amenable number.

825881 is a deficient number, since it is larger than the sum of its proper divisors (126439).

825881 is a wasteful number, since it uses less digits than its factorization.

825881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its digits is 5120, while the sum is 32.

The square root of 825881 is about 908.7799513634. The cubic root of 825881 is about 93.8222459409.

The spelling of 825881 in words is "eight hundred twenty-five thousand, eight hundred eighty-one".