12327870 has 16 divisors (see below), whose sum is σ = 29586960. Its totient is φ = 3287424.

The previous prime is 12327857. The next prime is 12327881. The reversal of 12327870 is 7872321.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 410929 = 12327870 / (1 + 2 + 3 + 2 + 7 + 8 + 7 + 0).

It is an alternating number because its digits alternate between odd and even.

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, 205435 + ... + 205494.

It is an arithmetic number, because the mean of its divisors is an integer number (1849185).

Almost surely, 2^12327870 is an apocalyptic number.

12327870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12327870 is an abundant number, since it is smaller than the sum of its proper divisors (17259090).

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

12327870 is a wasteful number, since it uses less digits than its factorization.

12327870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410939.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 12327870 is about 3511.1066631477. The cubic root of 12327870 is about 231.0092385878.

The spelling of 12327870 in words is "twelve million, three hundred twenty-seven thousand, eight hundred seventy".