11287347 has 4 divisors (see below), whose sum is σ = 15049800. Its totient is φ = 7524896.

The previous prime is 11287343. The next prime is 11287361. The reversal of 11287347 is 74378211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11287347 - 2² = 11287343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11287343) 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 3 ways as a sum of consecutive naturals, for example, 1881222 + ... + 1881227.

It is an arithmetic number, because the mean of its divisors is an integer number (3762450).

Almost surely, 2^11287347 is an apocalyptic number.

11287347 is a deficient number, since it is larger than the sum of its proper divisors (3762453).

11287347 is an equidigital number, since it uses as much as digits as its factorization.

11287347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762452.

The product of its digits is 9408, while the sum is 33.

The square root of 11287347 is about 3359.6647154143. The cubic root of 11287347 is about 224.3179146008.

The spelling of 11287347 in words is "eleven million, two hundred eighty-seven thousand, three hundred forty-seven".