1323666 has 24 divisors (see below), whose sum is σ = 2892864. Its totient is φ = 437400.

The previous prime is 1323659. The next prime is 1323689. The reversal of 1323666 is 6663231.

It is a super-3 number, since 3×1323666³ = 6957552555333516888, which contains 333 as substring.

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

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, 2475 + ... + 2961.

It is an arithmetic number, because the mean of its divisors is an integer number (120536).

2^1323666 is an apocalyptic number.

1323666 is an abundant number, since it is smaller than the sum of its proper divisors (1569198).

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

1323666 is a wasteful number, since it uses less digits than its factorization.

1323666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 643 counting only the distinct ones).

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

The square root of 1323666 is about 1150.5068448297. The cubic root of 1323666 is about 109.7975892052.

Adding to 1323666 its reverse (6663231), we get a palindrome (7986897).

The spelling of 1323666 in words is "one million, three hundred twenty-three thousand, six hundred sixty-six".