8221454 has 4 divisors (see below), whose sum is σ = 12332184. Its totient is φ = 4110726.

The previous prime is 8221453. The next prime is 8221463. The reversal of 8221454 is 4541228.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055362 + ... + 2055365.

It is an arithmetic number, because the mean of its divisors is an integer number (3083046).

Almost surely, 2^8221454 is an apocalyptic number.

8221454 is a deficient number, since it is larger than the sum of its proper divisors (4110730).

8221454 is a wasteful number, since it uses less digits than its factorization.

8221454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110729.

The product of its digits is 2560, while the sum is 26.

The square root of 8221454 is about 2867.3077965227. The cubic root of 8221454 is about 201.8286787107.

The spelling of 8221454 in words is "eight million, two hundred twenty-one thousand, four hundred fifty-four".