12758878 has 8 divisors (see below), whose sum is σ = 20878200. Its totient is φ = 5799480.

The previous prime is 12758873. The next prime is 12758881. The reversal of 12758878 is 87885721.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12758873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289953 + ... + 289996.

It is an arithmetic number, because the mean of its divisors is an integer number (2609775).

Almost surely, 2^12758878 is an apocalyptic number.

12758878 is a deficient number, since it is larger than the sum of its proper divisors (8119322).

12758878 is a wasteful number, since it uses less digits than its factorization.

12758878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579962.

The product of its digits is 250880, while the sum is 46.

The square root of 12758878 is about 3571.9571665965. The cubic root of 12758878 is about 233.6706472808.

It can be divided in two parts, 1275 and 8878, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 12758878 in words is "twelve million, seven hundred fifty-eight thousand, eight hundred seventy-eight".