8026821 has 24 divisors (see below), whose sum is σ = 12804480. Its totient is φ = 4804800.

The previous prime is 8026813. The next prime is 8026829. The reversal of 8026821 is 1286208.

It is an interprime number because it is at equal distance from previous prime (8026813) and next prime (8026829).

It is not a de Polignac number, because 8026821 - 2³ = 8026813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8026829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8356 + ... + 9266.

It is an arithmetic number, because the mean of its divisors is an integer number (533520).

Almost surely, 2^8026821 is an apocalyptic number.

It is an amenable number.

8026821 is a deficient number, since it is larger than the sum of its proper divisors (4777659).

8026821 is a wasteful number, since it uses less digits than its factorization.

8026821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 8026821 is about 2833.1644851650. The cubic root of 8026821 is about 200.2232590177.

The spelling of 8026821 in words is "eight million, twenty-six thousand, eight hundred twenty-one".