12091668 has 24 divisors (see below), whose sum is σ = 28271040. Its totient is φ = 4022400.

The previous prime is 12091649. The next prime is 12091687. The reversal of 12091668 is 86619021.

It is an interprime number because it is at equal distance from previous prime (12091649) and next prime (12091687).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9468 + ... + 10668.

It is an arithmetic number, because the mean of its divisors is an integer number (1177960).

Almost surely, 2^12091668 is an apocalyptic number.

It is an amenable number.

12091668 is an abundant number, since it is smaller than the sum of its proper divisors (16179372).

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

12091668 is a wasteful number, since it uses less digits than its factorization.

12091668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12091668 is about 3477.3075791480. The cubic root of 12091668 is about 229.5243351624.

The spelling of 12091668 in words is "twelve million, ninety-one thousand, six hundred sixty-eight".