11287867 has 8 divisors (see below), whose sum is σ = 11540432. Its totient is φ = 11037600.

The previous prime is 11287853. The next prime is 11287883. The reversal of 11287867 is 76878211.

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 11287867 - 2⁷ = 11287739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11287807) 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, 12433 + ... + 13309.

It is an arithmetic number, because the mean of its divisors is an integer number (1442554).

Almost surely, 2^11287867 is an apocalyptic number.

11287867 is a deficient number, since it is larger than the sum of its proper divisors (252565).

11287867 is an equidigital number, since it uses as much as digits as its factorization.

11287867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149.

The product of its digits is 37632, while the sum is 40.

The square root of 11287867 is about 3359.7421031978. The cubic root of 11287867 is about 224.3213592699.

The spelling of 11287867 in words is "eleven million, two hundred eighty-seven thousand, eight hundred sixty-seven".