12856077 has 40 divisors (see below), whose sum is σ = 21446040. Its totient is φ = 7620480.

The previous prime is 12856073. The next prime is 12856079. The reversal of 12856077 is 77065821.

12856077 is a `hidden beast` number, since 1 + 28 + 560 + 77 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 281961 + 12574116 = 531^2 + 3546^2 .

It is not a de Polignac number, because 12856077 - 2² = 12856073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856073) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30327 + ... + 30747.

It is an arithmetic number, because the mean of its divisors is an integer number (536151).

Almost surely, 2^12856077 is an apocalyptic number.

It is an amenable number.

12856077 is a deficient number, since it is larger than the sum of its proper divisors (8589963).

12856077 is a wasteful number, since it uses less digits than its factorization.

12856077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 12856077 is about 3585.5371982452. The cubic root of 12856077 is about 234.2625258735.

The spelling of 12856077 in words is "twelve million, eight hundred fifty-six thousand, seventy-seven".