8268021 has 32 divisors (see below), whose sum is σ = 13132800. Its totient is φ = 5125680.

The previous prime is 8267999. The next prime is 8268023. The reversal of 8268021 is 1208628.

It is not a de Polignac number, because 8268021 - 2¹⁰ = 8266997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8268023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36310 + ... + 36536.

It is an arithmetic number, because the mean of its divisors is an integer number (410400).

Almost surely, 2^8268021 is an apocalyptic number.

It is an amenable number.

8268021 is a deficient number, since it is larger than the sum of its proper divisors (4864779).

8268021 is a wasteful number, since it uses less digits than its factorization.

8268021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 320 counting only the distinct ones).

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

The square root of 8268021 is about 2875.4166654591. The cubic root of 8268021 is about 202.2090196647.

The spelling of 8268021 in words is "eight million, two hundred sixty-eight thousand, twenty-one".