8098221 has 8 divisors (see below), whose sum is σ = 11170080. Its totient is φ = 5212592.

The previous prime is 8098219. The next prime is 8098243. The reversal of 8098221 is 1228908.

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 8098221 - 2¹ = 8098219 is a prime.

It is an Ulam number.

8098221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8098201) 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, 46455 + ... + 46628.

It is an arithmetic number, because the mean of its divisors is an integer number (1396260).

Almost surely, 2^8098221 is an apocalyptic number.

It is an amenable number.

8098221 is a deficient number, since it is larger than the sum of its proper divisors (3071859).

8098221 is a wasteful number, since it uses less digits than its factorization.

8098221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93115.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8098221 is about 2845.7373385469. The cubic root of 8098221 is about 200.8151812170.

It can be divided in two parts, 80982 and 21, that added together give a triangular number (81003 = T₄₀₂).

The spelling of 8098221 in words is "eight million, ninety-eight thousand, two hundred twenty-one".