11389623 has 16 divisors (see below), whose sum is σ = 18110976. Its totient is φ = 6225120.

The previous prime is 11389621. The next prime is 11389639. The reversal of 11389623 is 32698311.

It is not a de Polignac number, because 11389623 - 2¹ = 11389621 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11389621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11308 + ... + 12273.

It is an arithmetic number, because the mean of its divisors is an integer number (1131936).

Almost surely, 2^11389623 is an apocalyptic number.

11389623 is a deficient number, since it is larger than the sum of its proper divisors (6721353).

11389623 is a wasteful number, since it uses less digits than its factorization.

11389623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23614.

The product of its digits is 7776, while the sum is 33.

The square root of 11389623 is about 3374.8515522909. The cubic root of 11389623 is about 224.9934022757.

The spelling of 11389623 in words is "eleven million, three hundred eighty-nine thousand, six hundred twenty-three".