11687877 has 6 divisors (see below), whose sum is σ = 16882502. Its totient is φ = 7791912.

The previous prime is 11687861. The next prime is 11687903. The reversal of 11687877 is 77878611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9235521 + 2452356 = 3039^2 + 1566^2 .

It is not a de Polignac number, because 11687877 - 2⁴ = 11687861 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 (11687827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 649318 + ... + 649335.

Almost surely, 2^11687877 is an apocalyptic number.

It is an amenable number.

11687877 is a deficient number, since it is larger than the sum of its proper divisors (5194625).

11687877 is a wasteful number, since it uses less digits than its factorization.

11687877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298659 (or 1298656 counting only the distinct ones).

The product of its digits is 131712, while the sum is 45.

The square root of 11687877 is about 3418.7537202905. The cubic root of 11687877 is about 226.9404321437.

It can be divided in two parts, 1168 and 7877, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 11687877 in words is "eleven million, six hundred eighty-seven thousand, eight hundred seventy-seven".