18662 has 16 divisors (see below), whose sum is σ = 33792. Its totient is φ = 7560.

The previous prime is 18661. The next prime is 18671. The reversal of 18662 is 26681.

18662 is nontrivially palindromic in base 6.

18662 is a nontrivial repdigit in base 6.

It is a plaindrome in base 6.

It is a nialpdrome in base 6 and base 12.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18661) 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 in 7 ways as a sum of consecutive naturals, for example, 413 + ... + 455.

It is an arithmetic number, because the mean of its divisors is an integer number (2112).

2¹⁸⁶⁶² is an apocalyptic number.

18662 is a deficient number, since it is larger than the sum of its proper divisors (15130).

18662 is a wasteful number, since it uses less digits than its factorization.

18662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83.

The product of its digits is 576, while the sum is 23.

The square root of 18662 is about 136.6089308940. The cubic root of 18662 is about 26.5248372811.

The spelling of 18662 in words is "eighteen thousand, six hundred sixty-two".