11389533 has 16 divisors (see below), whose sum is σ = 15550656. Its totient is φ = 7413120.

The previous prime is 11389529. The next prime is 11389549. The reversal of 11389533 is 33598311.

It is not a de Polignac number, because 11389533 - 2² = 11389529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11389494 and 11389503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11389583) 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, 28491 + ... + 28887.

It is an arithmetic number, because the mean of its divisors is an integer number (971916).

Almost surely, 2^11389533 is an apocalyptic number.

It is an amenable number.

11389533 is a deficient number, since it is larger than the sum of its proper divisors (4161123).

11389533 is a wasteful number, since it uses less digits than its factorization.

11389533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604.

The product of its digits is 9720, while the sum is 33.

The square root of 11389533 is about 3374.8382183447. The cubic root of 11389533 is about 224.9928096468.

The spelling of 11389533 in words is "eleven million, three hundred eighty-nine thousand, five hundred thirty-three".