7166222 has 8 divisors (see below), whose sum is σ = 12284976. Its totient is φ = 3071232.

The previous prime is 7166221. The next prime is 7166227. The reversal of 7166222 is 2226617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7166191 and 7166200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7166221) 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, 255923 + ... + 255950.

It is an arithmetic number, because the mean of its divisors is an integer number (1535622).

Almost surely, 2^7166222 is an apocalyptic number.

7166222 is a deficient number, since it is larger than the sum of its proper divisors (5118754).

7166222 is a wasteful number, since it uses less digits than its factorization.

7166222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511882.

The product of its digits is 2016, while the sum is 26.

The square root of 7166222 is about 2676.9800148675. The cubic root of 7166222 is about 192.7954377289.

The spelling of 7166222 in words is "seven million, one hundred sixty-six thousand, two hundred twenty-two".