7086221 has 8 divisors (see below), whose sum is σ = 7555200. Its totient is φ = 6626880.

The previous prime is 7086217. The next prime is 7086239. The reversal of 7086221 is 1226807.

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 7086221 - 2² = 7086217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7086241) 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, 860 + ... + 3861.

It is an arithmetic number, because the mean of its divisors is an integer number (944400).

Almost surely, 2^7086221 is an apocalyptic number.

It is an amenable number.

7086221 is a deficient number, since it is larger than the sum of its proper divisors (468979).

7086221 is a wasteful number, since it uses less digits than its factorization.

7086221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 7086221 is about 2661.9956799364. The cubic root of 7086221 is about 192.0753194798.

The spelling of 7086221 in words is "seven million, eighty-six thousand, two hundred twenty-one".