11667287 has 8 divisors (see below), whose sum is σ = 12557232. Its totient is φ = 10800000.

The previous prime is 11667281. The next prime is 11667289. The reversal of 11667287 is 78276611.

11667287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11667287 - 2⁶ = 11667223 is a prime.

It is a super-2 number, since 2×11667287² = 272251171880738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11667287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11667281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4589 + ... + 6662.

It is an arithmetic number, because the mean of its divisors is an integer number (1569654).

Almost surely, 2^11667287 is an apocalyptic number.

11667287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11667287 is a deficient number, since it is larger than the sum of its proper divisors (889945).

11667287 is a wasteful number, since it uses less digits than its factorization.

11667287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11329.

The product of its digits is 28224, while the sum is 38.

The square root of 11667287 is about 3415.7410616146. The cubic root of 11667287 is about 226.8070902750.

The spelling of 11667287 in words is "eleven million, six hundred sixty-seven thousand, two hundred eighty-seven".