214643 has 16 divisors (see below), whose sum is σ = 268800. Its totient is φ = 168480.

The previous prime is 214639. The next prime is 214651. The reversal of 214643 is 346412.

It is a happy number.

It is not a de Polignac number, because 214643 - 2² = 214639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2678 + ... + 2756.

It is an arithmetic number, because the mean of its divisors is an integer number (16800).

2²¹⁴⁶⁴³ is an apocalyptic number.

214643 is a deficient number, since it is larger than the sum of its proper divisors (54157).

214643 is a wasteful number, since it uses less digits than its factorization.

214643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122.

The product of its digits is 576, while the sum is 20.

The square root of 214643 is about 463.2958018372. The cubic root of 214643 is about 59.8740878053.

Subtracting 214643 from its reverse (346412), we obtain a square (131769 = 363²).

It can be divided in two parts, 21 and 4643, that added together give a palindrome (4664).

The spelling of 214643 in words is "two hundred fourteen thousand, six hundred forty-three".