12878215 has 8 divisors (see below), whose sum is σ = 17661600. Its totient is φ = 8830752.

The previous prime is 12878213. The next prime is 12878227. The reversal of 12878215 is 51287821.

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

It is not a de Polignac number, because 12878215 - 2¹ = 12878213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878213) 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, 183940 + ... + 184009.

It is an arithmetic number, because the mean of its divisors is an integer number (2207700).

Almost surely, 2^12878215 is an apocalyptic number.

12878215 is a deficient number, since it is larger than the sum of its proper divisors (4783385).

12878215 is an equidigital number, since it uses as much as digits as its factorization.

12878215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367961.

The product of its digits is 8960, while the sum is 34.

The square root of 12878215 is about 3588.6229949662. The cubic root of 12878215 is about 234.3969144546.

The spelling of 12878215 in words is "twelve million, eight hundred seventy-eight thousand, two hundred fifteen".