2267639 has 8 divisors (see below), whose sum is σ = 2581632. Its totient is φ = 1971640.

The previous prime is 2267633. The next prime is 2267653. The reversal of 2267639 is 9367622.

It is a happy number.

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

It is not a de Polignac number, because 2267639 - 2⁴ = 2267623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2267599 and 2267608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2267633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4229 + ... + 4734.

It is an arithmetic number, because the mean of its divisors is an integer number (322704).

2^2267639 is an apocalyptic number.

2267639 is a deficient number, since it is larger than the sum of its proper divisors (313993).

2267639 is a wasteful number, since it uses less digits than its factorization.

2267639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8997.

The product of its digits is 27216, while the sum is 35.

The square root of 2267639 is about 1505.8681881227. The cubic root of 2267639 is about 131.3786028990.

The spelling of 2267639 in words is "two million, two hundred sixty-seven thousand, six hundred thirty-nine".