12723878 has 8 divisors (see below), whose sum is σ = 19282872. Its totient is φ = 6296256.

The previous prime is 12723833. The next prime is 12723889. The reversal of 12723878 is 87832721.

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

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 3 ways as a sum of consecutive naturals, for example, 32600 + ... + 32987.

It is an arithmetic number, because the mean of its divisors is an integer number (2410359).

Almost surely, 2^12723878 is an apocalyptic number.

12723878 is a deficient number, since it is larger than the sum of its proper divisors (6558994).

12723878 is an equidigital number, since it uses as much as digits as its factorization.

12723878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65686.

The product of its digits is 37632, while the sum is 38.

The square root of 12723878 is about 3567.0545271975. The cubic root of 12723878 is about 233.4567841069.

The spelling of 12723878 in words is "twelve million, seven hundred twenty-three thousand, eight hundred seventy-eight".