2212389 has 6 divisors (see below), whose sum is σ = 3195686. Its totient is φ = 1474920.

The previous prime is 2212387. The next prime is 2212391. The reversal of 2212389 is 9832122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2212387) and next prime (2212391).

It can be written as a sum of positive squares in only one way, i.e., 1476225 + 736164 = 1215^2 + 858^2 .

It is not a de Polignac number, because 2212389 - 2¹ = 2212387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212387) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122902 + ... + 122919.

2^2212389 is an apocalyptic number.

It is an amenable number.

2212389 is a deficient number, since it is larger than the sum of its proper divisors (983297).

2212389 is a wasteful number, since it uses less digits than its factorization.

2212389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245827 (or 245824 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2212389 is about 1487.4101653545. The cubic root of 2212389 is about 130.3028246185.

It can be divided in two parts, 2212 and 389, that added together give a square (2601 = 51²).

The spelling of 2212389 in words is "two million, two hundred twelve thousand, three hundred eighty-nine".