2276639 has 4 divisors (see below), whose sum is σ = 2298024. Its totient is φ = 2255256.

The previous prime is 2276629. The next prime is 2276669. The reversal of 2276639 is 9366722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2276639 - 2⁸ = 2276383 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 2²¹ + 7⁶ + 6 + 6 + 3¹⁰ + 9³ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2276599 and 2276608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2276629) 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 3 ways as a sum of consecutive naturals, for example, 10532 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (574506).

2^2276639 is an apocalyptic number.

2276639 is a deficient number, since it is larger than the sum of its proper divisors (21385).

2276639 is a wasteful number, since it uses less digits than its factorization.

2276639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21384.

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

The square root of 2276639 is about 1508.8535382866. The cubic root of 2276639 is about 131.5521823483.

The spelling of 2276639 in words is "two million, two hundred seventy-six thousand, six hundred thirty-nine".