11303987 has 8 divisors (see below), whose sum is σ = 11778480. Its totient is φ = 10839040.

The previous prime is 11303911. The next prime is 11303989. The reversal of 11303987 is 78930311.

11303987 is digitally balanced in base 3, 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 11303987 - 2⁸ = 11303731 is a prime.

It is a super-3 number, since 3×11303987³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11303989) 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 7 ways as a sum of consecutive naturals, for example, 83 + ... + 4755.

It is an arithmetic number, because the mean of its divisors is an integer number (1472310).

Almost surely, 2^11303987 is an apocalyptic number.

11303987 is a deficient number, since it is larger than the sum of its proper divisors (474493).

11303987 is an equidigital number, since it uses as much as digits as its factorization.

11303987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 11303987 is about 3362.1402409775. The cubic root of 11303987 is about 224.4280915791.

The spelling of 11303987 in words is "eleven million, three hundred three thousand, nine hundred eighty-seven".