214885986 has 64 divisors (see below), whose sum is σ = 510836736. Its totient is φ = 58968000.

The previous prime is 214885901. The next prime is 214885999. The reversal of 214885986 is 689588412.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196056 + ... + 197148.

It is an arithmetic number, because the mean of its divisors is an integer number (7981824).

Almost surely, 2^214885986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214885986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255418368).

214885986 is an abundant number, since it is smaller than the sum of its proper divisors (295950750).

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

214885986 is a wasteful number, since it uses less digits than its factorization.

214885986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287.

The product of its digits is 1105920, while the sum is 51.

The square root of 214885986 is about 14658.9899379186. The cubic root of 214885986 is about 598.9667271557.

The spelling of 214885986 in words is "two hundred fourteen million, eight hundred eighty-five thousand, nine hundred eighty-six".