7220886 has 16 divisors (see below), whose sum is σ = 15291504. Its totient is φ = 2265344.

The previous prime is 7220867. The next prime is 7220891. The reversal of 7220886 is 6880227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35295 + ... + 35498.

It is an arithmetic number, because the mean of its divisors is an integer number (955719).

Almost surely, 2^7220886 is an apocalyptic number.

7220886 is an abundant number, since it is smaller than the sum of its proper divisors (8070618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7220886 is a wasteful number, since it uses less digits than its factorization.

7220886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70815.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 7220886 is about 2687.1706309797. The cubic root of 7220886 is about 193.2844115879.

The spelling of 7220886 in words is "seven million, two hundred twenty thousand, eight hundred eighty-six".