2239637 has 4 divisors (see below), whose sum is σ = 2253216. Its totient is φ = 2226060.

The previous prime is 2239607. The next prime is 2239639. The reversal of 2239637 is 7369322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2239637 - 2¹⁴ = 2223253 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 (2239639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6539 + ... + 6872.

It is an arithmetic number, because the mean of its divisors is an integer number (563304).

2^2239637 is an apocalyptic number.

It is an amenable number.

2239637 is a deficient number, since it is larger than the sum of its proper divisors (13579).

2239637 is a wasteful number, since it uses less digits than its factorization.

2239637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13578.

The product of its digits is 13608, while the sum is 32.

The square root of 2239637 is about 1496.5416800076. The cubic root of 2239637 is about 130.8355841860.

The spelling of 2239637 in words is "two million, two hundred thirty-nine thousand, six hundred thirty-seven".