8486021 has 4 divisors (see below), whose sum is σ = 8498700. Its totient is φ = 8473344.

The previous prime is 8485979. The next prime is 8486039. The reversal of 8486021 is 1206848.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 923521 + 7562500 = 961^2 + 2750^2 .

It is a cyclic number.

It is not a de Polignac number, because 8486021 - 2¹⁸ = 8223877 is a prime.

It is a super-3 number, since 3×8486021³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8486041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5276 + ... + 6693.

It is an arithmetic number, because the mean of its divisors is an integer number (2124675).

Almost surely, 2^8486021 is an apocalyptic number.

It is an amenable number.

8486021 is a deficient number, since it is larger than the sum of its proper divisors (12679).

8486021 is a wasteful number, since it uses less digits than its factorization.

8486021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12678.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 8486021 is about 2913.0775822144. The cubic root of 8486021 is about 203.9708163430.

The spelling of 8486021 in words is "eight million, four hundred eighty-six thousand, twenty-one".