12968778 has 16 divisors (see below), whose sum is σ = 26016480. Its totient is φ = 4309776.

The previous prime is 12968777. The next prime is 12968797. The reversal of 12968778 is 87786921.

12968778 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12968777) 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, 1033 + ... + 5196.

It is an arithmetic number, because the mean of its divisors is an integer number (1626030).

Almost surely, 2^12968778 is an apocalyptic number.

12968778 is an abundant number, since it is smaller than the sum of its proper divisors (13047702).

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

12968778 is a wasteful number, since it uses less digits than its factorization.

12968778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581.

The product of its digits is 338688, while the sum is 48.

The square root of 12968778 is about 3601.2189602966. The cubic root of 12968778 is about 234.9450784586.

The spelling of 12968778 in words is "twelve million, nine hundred sixty-eight thousand, seven hundred seventy-eight".