2212639 has 8 divisors (see below), whose sum is σ = 2599632. Its totient is φ = 1856640.

The previous prime is 2212633. The next prime is 2212657. The reversal of 2212639 is 9362122.

It is a happy number.

2212639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2212639 - 2³ = 2212631 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 (2212631) 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 7 ways as a sum of consecutive naturals, for example, 7594 + ... + 7879.

It is an arithmetic number, because the mean of its divisors is an integer number (324954).

2^2212639 is an apocalyptic number.

2212639 is a deficient number, since it is larger than the sum of its proper divisors (386993).

2212639 is a wasteful number, since it uses less digits than its factorization.

2212639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15497.

The product of its digits is 1296, while the sum is 25.

The square root of 2212639 is about 1487.4942016694. The cubic root of 2212639 is about 130.3077325075.

The spelling of 2212639 in words is "two million, two hundred twelve thousand, six hundred thirty-nine".