12458878 has 4 divisors (see below), whose sum is σ = 18688320. Its totient is φ = 6229438.

The previous prime is 12458861. The next prime is 12458879. The reversal of 12458878 is 87885421.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12458879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3114718 + ... + 3114721.

It is an arithmetic number, because the mean of its divisors is an integer number (4672080).

Almost surely, 2^12458878 is an apocalyptic number.

12458878 is a deficient number, since it is larger than the sum of its proper divisors (6229442).

12458878 is an equidigital number, since it uses as much as digits as its factorization.

12458878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229441.

The product of its digits is 143360, while the sum is 43.

The square root of 12458878 is about 3529.7135861143. The cubic root of 12458878 is about 231.8246668720.

The spelling of 12458878 in words is "twelve million, four hundred fifty-eight thousand, eight hundred seventy-eight".