12878455 has 8 divisors (see below), whose sum is σ = 15502032. Its totient is φ = 10270848.

The previous prime is 12878431. The next prime is 12878483. The reversal of 12878455 is 55487821.

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 12878455 - 2²³ = 4489847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2137 + ... + 5506.

It is an arithmetic number, because the mean of its divisors is an integer number (1937754).

Almost surely, 2^12878455 is an apocalyptic number.

12878455 is a deficient number, since it is larger than the sum of its proper divisors (2623577).

12878455 is an equidigital number, since it uses as much as digits as its factorization.

12878455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7985.

The product of its digits is 89600, while the sum is 40.

The square root of 12878455 is about 3588.6564338203. The cubic root of 12878455 is about 234.3983705288.

The spelling of 12878455 in words is "twelve million, eight hundred seventy-eight thousand, four hundred fifty-five".