10687218 has 8 divisors (see below), whose sum is σ = 21374448. Its totient is φ = 3562404.

The previous prime is 10687217. The next prime is 10687223. The reversal of 10687218 is 81278601.

It is a happy number.

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

10687218 is an admirable number.

It is a super-2 number, since 2×10687218² = 228433257159048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10687211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890596 + ... + 890607.

It is an arithmetic number, because the mean of its divisors is an integer number (2671806).

Almost surely, 2^10687218 is an apocalyptic number.

10687218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10687218 is a wasteful number, since it uses less digits than its factorization.

10687218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781208.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 10687218 is about 3269.1310772130. The cubic root of 10687218 is about 220.2697654952.

The spelling of 10687218 in words is "ten million, six hundred eighty-seven thousand, two hundred eighteen".