11389603 has 4 divisors (see below), whose sum is σ = 11418408. Its totient is φ = 11360800.

The previous prime is 11389583. The next prime is 11389613. The reversal of 11389603 is 30698311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11389603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11389613) 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, 13801 + ... + 14602.

It is an arithmetic number, because the mean of its divisors is an integer number (2854602).

Almost surely, 2^11389603 is an apocalyptic number.

11389603 is a deficient number, since it is larger than the sum of its proper divisors (28805).

11389603 is an equidigital number, since it uses as much as digits as its factorization.

11389603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28804.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 11389603 is about 3374.8485891963. The cubic root of 11389603 is about 224.9932705806.

The spelling of 11389603 in words is "eleven million, three hundred eighty-nine thousand, six hundred three".