12782011 has 16 divisors (see below), whose sum is σ = 15279840. Its totient is φ = 10554880.

The previous prime is 12782009. The next prime is 12782017. The reversal of 12782011 is 11028721.

12782011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12782011 - 2¹ = 12782009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12782017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4245 + ... + 6601.

It is an arithmetic number, because the mean of its divisors is an integer number (954990).

Almost surely, 2^12782011 is an apocalyptic number.

12782011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12782011 is a deficient number, since it is larger than the sum of its proper divisors (2497829).

12782011 is a wasteful number, since it uses less digits than its factorization.

12782011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 12782011 is about 3575.1938408987. The cubic root of 12782011 is about 233.8117840245.

The spelling of 12782011 in words is "twelve million, seven hundred eighty-two thousand, eleven".