12089718 has 12 divisors (see below), whose sum is σ = 26194428. Its totient is φ = 4029900.

The previous prime is 12089717. The next prime is 12089741. The reversal of 12089718 is 81798021.

It is a super-2 number, since 2×12089718² = 292322562639048, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12089717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 335808 + ... + 335843.

It is an arithmetic number, because the mean of its divisors is an integer number (2182869).

Almost surely, 2^12089718 is an apocalyptic number.

12089718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12089718 is an abundant number, since it is smaller than the sum of its proper divisors (14104710).

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

12089718 is a wasteful number, since it uses less digits than its factorization.

12089718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671659 (or 671656 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 12089718 is about 3477.0271784960. The cubic root of 12089718 is about 229.5119961833.

The spelling of 12089718 in words is "twelve million, eighty-nine thousand, seven hundred eighteen".