12771078 has 32 divisors (see below), whose sum is σ = 27820800. Its totient is φ = 3892896.

The previous prime is 12771053. The next prime is 12771089. The reversal of 12771078 is 87017721.

12771078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375 + ... + 5237.

It is an arithmetic number, because the mean of its divisors is an integer number (869400).

Almost surely, 2^12771078 is an apocalyptic number.

12771078 is an abundant number, since it is smaller than the sum of its proper divisors (15049722).

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

12771078 is a wasteful number, since it uses less digits than its factorization.

12771078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916.

The product of its (nonzero) digits is 5488, while the sum is 33.

The square root of 12771078 is about 3573.6645057979. The cubic root of 12771078 is about 233.7451019401.

Adding to 12771078 its reverse (87017721), we get a palindrome (99788799).

The spelling of 12771078 in words is "twelve million, seven hundred seventy-one thousand, seventy-eight".