11389537 has 4 divisors (see below), whose sum is σ = 11582640. Its totient is φ = 11196436.

The previous prime is 11389529. The next prime is 11389549. The reversal of 11389537 is 73598311.

It is a happy number.

11389537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73598311 = 59 ⋅1247429.

It is a cyclic number.

It is not a de Polignac number, because 11389537 - 2³ = 11389529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11389496 and 11389505.

It is not an unprimeable number, because it can be changed into a prime (11389517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96463 + ... + 96580.

It is an arithmetic number, because the mean of its divisors is an integer number (2895660).

Almost surely, 2^11389537 is an apocalyptic number.

It is an amenable number.

11389537 is a deficient number, since it is larger than the sum of its proper divisors (193103).

11389537 is an equidigital number, since it uses as much as digits as its factorization.

11389537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193102.

The product of its digits is 22680, while the sum is 37.

The square root of 11389537 is about 3374.8388109656. The cubic root of 11389537 is about 224.9928359859.

The spelling of 11389537 in words is "eleven million, three hundred eighty-nine thousand, five hundred thirty-seven".