11389853 has 4 divisors (see below), whose sum is σ = 11885088. Its totient is φ = 10894620.

The previous prime is 11389849. The next prime is 11389867. The reversal of 11389853 is 35898311.

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: 35898311 = 79 ⋅454409.

It is a cyclic number.

It is not a de Polignac number, because 11389853 - 2² = 11389849 is a prime.

It is a Duffinian number.

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 (11389153) 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, 247583 + ... + 247628.

It is an arithmetic number, because the mean of its divisors is an integer number (2971272).

Almost surely, 2^11389853 is an apocalyptic number.

It is an amenable number.

11389853 is a deficient number, since it is larger than the sum of its proper divisors (495235).

11389853 is an equidigital number, since it uses as much as digits as its factorization.

11389853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495234.

The product of its digits is 25920, while the sum is 38.

The square root of 11389853 is about 3374.8856276917. The cubic root of 11389853 is about 224.9949167576.

The spelling of 11389853 in words is "eleven million, three hundred eighty-nine thousand, eight hundred fifty-three".