1233666 has 24 divisors (see below), whose sum is σ = 3055104. Its totient is φ = 352440.

The previous prime is 1233653. The next prime is 1233709. The reversal of 1233666 is 6663321.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4770 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (127296).

2^1233666 is an apocalyptic number.

1233666 is an abundant number, since it is smaller than the sum of its proper divisors (1821438).

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

1233666 is a wasteful number, since it uses less digits than its factorization.

1233666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9806 (or 9803 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 1233666 is about 1110.7051814050. The cubic root of 1233666 is about 107.2504686435.

Adding to 1233666 its reverse (6663321), we get a palindrome (7896987).

The spelling of 1233666 in words is "one million, two hundred thirty-three thousand, six hundred sixty-six".