4222187 has 4 divisors (see below), whose sum is σ = 4245696. Its totient is φ = 4198680.

The previous prime is 4222177. The next prime is 4222219. The reversal of 4222187 is 7812224.

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

It is a cyclic number.

It is not a de Polignac number, because 4222187 - 2¹⁶ = 4156651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4222117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11483 + ... + 11844.

It is an arithmetic number, because the mean of its divisors is an integer number (1061424).

Almost surely, 2^4222187 is an apocalyptic number.

4222187 is a deficient number, since it is larger than the sum of its proper divisors (23509).

4222187 is a wasteful number, since it uses less digits than its factorization.

4222187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23508.

The product of its digits is 1792, while the sum is 26.

The square root of 4222187 is about 2054.7960969400. The cubic root of 4222187 is about 161.6264700905.

The spelling of 4222187 in words is "four million, two hundred twenty-two thousand, one hundred eighty-seven".