12071868 has 12 divisors (see below), whose sum is σ = 28167720. Its totient is φ = 4023952.

The previous prime is 12071867. The next prime is 12071869. The reversal of 12071868 is 86817021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12071867) and next prime (12071869).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502983 + ... + 503006.

It is an arithmetic number, because the mean of its divisors is an integer number (2347310).

Almost surely, 2^12071868 is an apocalyptic number.

It is an amenable number.

12071868 is an abundant number, since it is smaller than the sum of its proper divisors (16095852).

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

12071868 is a wasteful number, since it uses less digits than its factorization.

12071868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005996 (or 1005994 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 12071868 is about 3474.4593824076. The cubic root of 12071868 is about 229.3989853577.

Adding to 12071868 its reverse (86817021), we get a palindrome (98888889).

It can be divided in two parts, 120718 and 68, that added together give a triangular number (120786 = T₄₉₁).

The spelling of 12071868 in words is "twelve million, seventy-one thousand, eight hundred sixty-eight".