1211668 has 24 divisors (see below), whose sum is σ = 2268000. Its totient is φ = 564768.

The previous prime is 1211659. The next prime is 1211669. The reversal of 1211668 is 8661121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8058 + ... + 8206.

It is an arithmetic number, because the mean of its divisors is an integer number (94500).

2^1211668 is an apocalyptic number.

It is an amenable number.

1211668 is a deficient number, since it is larger than the sum of its proper divisors (1056332).

1211668 is a wasteful number, since it uses less digits than its factorization.

1211668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 277 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 1211668 is about 1100.7579207074. The cubic root of 1211668 is about 106.6091660574.

Adding to 1211668 its reverse (8661121), we get a palindrome (9872789).

The spelling of 1211668 in words is "one million, two hundred eleven thousand, six hundred sixty-eight".