10687866 has 32 divisors (see below), whose sum is σ = 25868160. Its totient is φ = 2873856.

The previous prime is 10687837. The next prime is 10687867. The reversal of 10687866 is 66878601.

10687866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×10687866³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (10687867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6771 + ... + 8198.

It is an arithmetic number, because the mean of its divisors is an integer number (808380).

Almost surely, 2^10687866 is an apocalyptic number.

10687866 is an abundant number, since it is smaller than the sum of its proper divisors (15180294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10687866 is a wasteful number, since it uses less digits than its factorization.

10687866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14998.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 10687866 is about 3269.2301846153. The cubic root of 10687866 is about 220.2742172906.

The spelling of 10687866 in words is "ten million, six hundred eighty-seven thousand, eight hundred sixty-six".