214664 has 8 divisors (see below), whose sum is σ = 402510. Its totient is φ = 107328.

The previous prime is 214663. The next prime is 214667. The reversal of 214664 is 466412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 209764 + 4900 = 458^2 + 70^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 16.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (214663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13409 + ... + 13424.

2²¹⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

214664 is a deficient number, since it is larger than the sum of its proper divisors (187846).

214664 is a wasteful number, since it uses less digits than its factorization.

214664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26839 (or 26835 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 214664 is about 463.3184649893. The cubic root of 214664 is about 59.8760403728.

It can be divided in two parts, 214 and 664, that added together give a palindrome (878).

The spelling of 214664 in words is "two hundred fourteen thousand, six hundred sixty-four".