214055687 has 16 divisors (see below), whose sum is σ = 240060672. Its totient is φ = 189805440.

The previous prime is 214055683. The next prime is 214055707. The reversal of 214055687 is 786550412.

It is a cyclic number.

It is not a de Polignac number, because 214055687 - 2² = 214055683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214055687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214055683) 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 15 ways as a sum of consecutive naturals, for example, 22112 + ... + 30282.

It is an arithmetic number, because the mean of its divisors is an integer number (15003792).

Almost surely, 2^214055687 is an apocalyptic number.

214055687 is a deficient number, since it is larger than the sum of its proper divisors (26004985).

214055687 is a wasteful number, since it uses less digits than its factorization.

214055687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8278.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 214055687 is about 14630.6420569980. The cubic root of 214055687 is about 598.1942812699.

The spelling of 214055687 in words is "two hundred fourteen million, fifty-five thousand, six hundred eighty-seven".