12478870 has 16 divisors (see below), whose sum is σ = 22543920. Its totient is φ = 4973344.

The previous prime is 12478859. The next prime is 12478891. The reversal of 12478870 is 7887421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (1408995).

Almost surely, 2^12478870 is an apocalyptic number.

12478870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12478870 is a deficient number, since it is larger than the sum of its proper divisors (10065050).

12478870 is a wasteful number, since it uses less digits than its factorization.

12478870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 12478870 is about 3532.5444087796. The cubic root of 12478870 is about 231.9485988980.

The spelling of 12478870 in words is "twelve million, four hundred seventy-eight thousand, eight hundred seventy".