11287856 has 10 divisors (see below), whose sum is σ = 21870252. Its totient is φ = 5643920.

The previous prime is 11287853. The next prime is 11287883. The reversal of 11287856 is 65878211.

It is not an unprimeable number, because it can be changed into a prime (11287853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352730 + ... + 352761.

Almost surely, 2^11287856 is an apocalyptic number.

11287856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11287856 is a deficient number, since it is larger than the sum of its proper divisors (10582396).

11287856 is an equidigital number, since it uses as much as digits as its factorization.

11287856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705499 (or 705493 counting only the distinct ones).

The product of its digits is 26880, while the sum is 38.

The square root of 11287856 is about 3359.7404661670. The cubic root of 11287856 is about 224.3212864030.

The spelling of 11287856 in words is "eleven million, two hundred eighty-seven thousand, eight hundred fifty-six".