214889643 has 6 divisors (see below), whose sum is σ = 310396164. Its totient is φ = 143259756.

The previous prime is 214889627. The next prime is 214889657. The reversal of 214889643 is 346988412.

It is a happy number.

It is not a de Polignac number, because 214889643 - 2⁴ = 214889627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214889663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11938305 + ... + 11938322.

It is an arithmetic number, because the mean of its divisors is an integer number (51732694).

Almost surely, 2^214889643 is an apocalyptic number.

214889643 is a deficient number, since it is larger than the sum of its proper divisors (95506521).

214889643 is a wasteful number, since it uses less digits than its factorization.

214889643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23876633 (or 23876630 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 214889643 is about 14659.1146731308. The cubic root of 214889643 is about 598.9701249404.

The spelling of 214889643 in words is "two hundred fourteen million, eight hundred eighty-nine thousand, six hundred forty-three".