823081 has 8 divisors (see below), whose sum is σ = 971264. Its totient is φ = 682560.

The previous prime is 823051. The next prime is 823117. The reversal of 823081 is 180328.

823081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 823081 - 2¹³ = 814889 is a prime.

It is a super-2 number, since 2×823081² = 1354924665122, which contains 22 as substring.

It is a nialpdrome in base 7.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (823001) 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, 1680 + ... + 2113.

It is an arithmetic number, because the mean of its divisors is an integer number (121408).

2⁸²³⁰⁸¹ is an apocalyptic number.

It is an amenable number.

823081 is a deficient number, since it is larger than the sum of its proper divisors (148183).

823081 is a wasteful number, since it uses less digits than its factorization.

823081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 823081 is about 907.2381164832. The cubic root of 823081 is about 93.7160967779.

The spelling of 823081 in words is "eight hundred twenty-three thousand, eighty-one".