2688263 has 4 divisors (see below), whose sum is σ = 2805168. Its totient is φ = 2571360.

The previous prime is 2688239. The next prime is 2688299. The reversal of 2688263 is 3628862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3628862 = 2 ⋅1814431.

It is a cyclic number.

It is not a de Polignac number, because 2688263 - 2¹⁰ = 2687239 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 (2688223) 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, 58418 + ... + 58463.

It is an arithmetic number, because the mean of its divisors is an integer number (701292).

2^2688263 is an apocalyptic number.

2688263 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2688263 is a deficient number, since it is larger than the sum of its proper divisors (116905).

2688263 is a wasteful number, since it uses less digits than its factorization.

2688263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116904.

The product of its digits is 27648, while the sum is 35.

The square root of 2688263 is about 1639.5923273790. The cubic root of 2688263 is about 139.0456003450.

The spelling of 2688263 in words is "two million, six hundred eighty-eight thousand, two hundred sixty-three".