827081 has 4 divisors (see below), whose sum is σ = 829392. Its totient is φ = 824772.

The previous prime is 827063. The next prime is 827087. The reversal of 827081 is 180728.

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.

It is a cyclic number.

It is not a de Polignac number, because 827081 - 2¹⁴ = 810697 is a prime.

It is a super-2 number, since 2×827081² = 1368125961122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 827081.

It is not an unprimeable number, because it can be changed into a prime (827087) 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, 491 + ... + 1376.

It is an arithmetic number, because the mean of its divisors is an integer number (207348).

2⁸²⁷⁰⁸¹ is an apocalyptic number.

It is an amenable number.

827081 is a deficient number, since it is larger than the sum of its proper divisors (2311).

827081 is a wasteful number, since it uses less digits than its factorization.

827081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 827081 is about 909.4399375440. The cubic root of 827081 is about 93.8676649984.

The spelling of 827081 in words is "eight hundred twenty-seven thousand, eighty-one".