12977091 has 20 divisors (see below), whose sum is σ = 19532304. Its totient is φ = 8586000.

The previous prime is 12977087. The next prime is 12977119. The reversal of 12977091 is 19077921.

It is not a de Polignac number, because 12977091 - 2² = 12977087 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (12977071) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11701 + ... + 12761.

Almost surely, 2^12977091 is an apocalyptic number.

12977091 is a deficient number, since it is larger than the sum of its proper divisors (6555213).

12977091 is a wasteful number, since it uses less digits than its factorization.

12977091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1215 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 12977091 is about 3602.3729679199. The cubic root of 12977091 is about 234.9952677484.

The spelling of 12977091 in words is "twelve million, nine hundred seventy-seven thousand, ninety-one".