12099871 has 8 divisors (see below), whose sum is σ = 13850144. Its totient is φ = 10355040.

The previous prime is 12099859. The next prime is 12099883. The reversal of 12099871 is 17899021.

12099871 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12099859) and next prime (12099883).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12099871 - 2⁵ = 12099839 is a prime.

12099871 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 12099871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12099271) 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, 6301 + ... + 7993.

It is an arithmetic number, because the mean of its divisors is an integer number (1731268).

Almost surely, 2^12099871 is an apocalyptic number.

12099871 is a deficient number, since it is larger than the sum of its proper divisors (1750273).

12099871 is a wasteful number, since it uses less digits than its factorization.

12099871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 12099871 is about 3478.4868836895. The cubic root of 12099871 is about 229.5762266114.

The spelling of 12099871 in words is "twelve million, ninety-nine thousand, eight hundred seventy-one".