12776071 has 16 divisors (see below), whose sum is σ = 16012800. Its totient is φ = 9902880.

The previous prime is 12776069. The next prime is 12776081. The reversal of 12776071 is 17067721.

12776071 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 12776071 - 2¹ = 12776069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776011) 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, 21030 + ... + 21628.

It is an arithmetic number, because the mean of its divisors is an integer number (1000800).

Almost surely, 2^12776071 is an apocalyptic number.

12776071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12776071 is a deficient number, since it is larger than the sum of its proper divisors (3236729).

12776071 is a wasteful number, since it uses less digits than its factorization.

12776071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 4116, while the sum is 31.

The square root of 12776071 is about 3574.3630201758. The cubic root of 12776071 is about 233.7755597509.

The spelling of 12776071 in words is "twelve million, seven hundred seventy-six thousand, seventy-one".