8254221 has 4 divisors (see below), whose sum is σ = 11005632. Its totient is φ = 5502812.

The previous prime is 8254193. The next prime is 8254223. The reversal of 8254221 is 1224528.

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 8254221 - 2¹⁵ = 8221453 is a prime.

8254221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8254191 and 8254200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8254223) 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, 1375701 + ... + 1375706.

It is an arithmetic number, because the mean of its divisors is an integer number (2751408).

Almost surely, 2^8254221 is an apocalyptic number.

It is an amenable number.

8254221 is a deficient number, since it is larger than the sum of its proper divisors (2751411).

8254221 is a wasteful number, since it uses less digits than its factorization.

8254221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751410.

The product of its digits is 1280, while the sum is 24.

The square root of 8254221 is about 2873.0160110936. The cubic root of 8254221 is about 202.0964559115.

Adding to 8254221 its reverse (1224528), we get a palindrome (9478749).

The spelling of 8254221 in words is "eight million, two hundred fifty-four thousand, two hundred twenty-one".