2216894 has 4 divisors (see below), whose sum is σ = 3325344. Its totient is φ = 1108446.

The previous prime is 2216887. The next prime is 2216897. The reversal of 2216894 is 4986122.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2216894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216897) by changing a digit.

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 as a sum of consecutive naturals, namely, 554222 + ... + 554225.

It is an arithmetic number, because the mean of its divisors is an integer number (831336).

2^2216894 is an apocalyptic number.

2216894 is a deficient number, since it is larger than the sum of its proper divisors (1108450).

2216894 is a wasteful number, since it uses less digits than its factorization.

2216894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108449.

The product of its digits is 6912, while the sum is 32.

The square root of 2216894 is about 1488.9237723940. The cubic root of 2216894 is about 130.3912081468.

The spelling of 2216894 in words is "two million, two hundred sixteen thousand, eight hundred ninety-four".