2236639 has 8 divisors (see below), whose sum is σ = 2386800. Its totient is φ = 2088576.

The previous prime is 2236627. The next prime is 2236651. The reversal of 2236639 is 9366322.

It is an interprime number because it is at equal distance from previous prime (2236627) and next prime (2236651).

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 2236639 - 2⁷ = 2236511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2236639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2236139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2092 + ... + 2974.

It is an arithmetic number, because the mean of its divisors is an integer number (298350).

2^2236639 is an apocalyptic number.

2236639 is a deficient number, since it is larger than the sum of its proper divisors (150161).

2236639 is a wasteful number, since it uses less digits than its factorization.

2236639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049.

The product of its digits is 11664, while the sum is 31.

The square root of 2236639 is about 1495.5397019137. The cubic root of 2236639 is about 130.7771788533. Note that the first 3 decimals are identical.

The spelling of 2236639 in words is "two million, two hundred thirty-six thousand, six hundred thirty-nine".