12973878 has 16 divisors (see below), whose sum is σ = 28830960. Its totient is φ = 4324608.

The previous prime is 12973871. The next prime is 12973897. The reversal of 12973878 is 87837921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12973871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120075 + ... + 120182.

It is an arithmetic number, because the mean of its divisors is an integer number (1801935).

Almost surely, 2^12973878 is an apocalyptic number.

12973878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12973878 is an abundant number, since it is smaller than the sum of its proper divisors (15857082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12973878 is a wasteful number, since it uses less digits than its factorization.

12973878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240268 (or 240262 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 12973878 is about 3601.9269842683. The cubic root of 12973878 is about 234.9758719758.

The spelling of 12973878 in words is "twelve million, nine hundred seventy-three thousand, eight hundred seventy-eight".