11664887 has 12 divisors (see below), whose sum is σ = 13184784. Its totient is φ = 10296000.

The previous prime is 11664881. The next prime is 11664899. The reversal of 11664887 is 78846611.

It is not a de Polignac number, because 11664887 - 2¹⁰ = 11663863 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 (11664881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2387 + ... + 5387.

It is an arithmetic number, because the mean of its divisors is an integer number (1098732).

Almost surely, 2^11664887 is an apocalyptic number.

11664887 is a deficient number, since it is larger than the sum of its proper divisors (1519897).

11664887 is a wasteful number, since it uses less digits than its factorization.

11664887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050 (or 3037 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 11664887 is about 3415.3897288597. The cubic root of 11664887 is about 226.7915375492.

The spelling of 11664887 in words is "eleven million, six hundred sixty-four thousand, eight hundred eighty-seven".