2212686 has 48 divisors (see below), whose sum is σ = 5806944. Its totient is φ = 594432.

The previous prime is 2212673. The next prime is 2212699. The reversal of 2212686 is 6862122.

It is an interprime number because it is at equal distance from previous prime (2212673) and next prime (2212699).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1626 + ... + 2658.

It is an arithmetic number, because the mean of its divisors is an integer number (120978).

2^2212686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903472).

2212686 is an abundant number, since it is smaller than the sum of its proper divisors (3594258).

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

2212686 is a wasteful number, since it uses less digits than its factorization.

2212686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1062 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2212686 is about 1487.5099999664. The cubic root of 2212686 is about 130.3086551494.

The spelling of 2212686 in words is "two million, two hundred twelve thousand, six hundred eighty-six".