214864688 has 20 divisors (see below), whose sum is σ = 417891408. Its totient is φ = 107021760.

The previous prime is 214864687. The next prime is 214864693. The reversal of 214864688 is 886468412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (214864687) 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, 21323 + ... + 29738.

Almost surely, 2^214864688 is an apocalyptic number.

It is an amenable number.

214864688 is a deficient number, since it is larger than the sum of its proper divisors (203026720).

214864688 is a wasteful number, since it uses less digits than its factorization.

214864688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51332 (or 51326 counting only the distinct ones).

The product of its digits is 589824, while the sum is 47.

The square root of 214864688 is about 14658.2634715030. The cubic root of 214864688 is about 598.9469380340.

Adding to 214864688 its product of digits (589824), we get a palindrome (215454512).

The spelling of 214864688 in words is "two hundred fourteen million, eight hundred sixty-four thousand, six hundred eighty-eight".