8286421 has 8 divisors (see below), whose sum is σ = 9735264. Its totient is φ = 6953520.

The previous prime is 8286379. The next prime is 8286433. The reversal of 8286421 is 1246828.

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 8286421 - 2¹¹ = 8284373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8286461) 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, 28831 + ... + 29116.

It is an arithmetic number, because the mean of its divisors is an integer number (1216908).

Almost surely, 2^8286421 is an apocalyptic number.

It is an amenable number.

8286421 is a deficient number, since it is larger than the sum of its proper divisors (1448843).

8286421 is a wasteful number, since it uses less digits than its factorization.

8286421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57971.

The product of its digits is 6144, while the sum is 31.

The square root of 8286421 is about 2878.6144236420. The cubic root of 8286421 is about 202.3589100009.

The spelling of 8286421 in words is "eight million, two hundred eighty-six thousand, four hundred twenty-one".