2688086 has 4 divisors (see below), whose sum is σ = 4032132. Its totient is φ = 1344042.

The previous prime is 2688073. The next prime is 2688137. The reversal of 2688086 is 6808862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6808862 = 2 ⋅3404431.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672020 + ... + 672023.

It is an arithmetic number, because the mean of its divisors is an integer number (1008033).

2^2688086 is an apocalyptic number.

2688086 is a deficient number, since it is larger than the sum of its proper divisors (1344046).

2688086 is a wasteful number, since it uses less digits than its factorization.

2688086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344045.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 2688086 is about 1639.5383496582. The cubic root of 2688086 is about 139.0425486085.

The spelling of 2688086 in words is "two million, six hundred eighty-eight thousand, eighty-six".