11388197 has 4 divisors (see below), whose sum is σ = 11883360. Its totient is φ = 10893036.

The previous prime is 11388161. The next prime is 11388199. The reversal of 11388197 is 79188311.

11388197 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: 79188311 = 7001 ⋅11311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11388197 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11388197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11388199) 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, 247547 + ... + 247592.

It is an arithmetic number, because the mean of its divisors is an integer number (2970840).

Almost surely, 2^11388197 is an apocalyptic number.

It is an amenable number.

11388197 is a deficient number, since it is larger than the sum of its proper divisors (495163).

11388197 is an equidigital number, since it uses as much as digits as its factorization.

11388197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495162.

The product of its digits is 12096, while the sum is 38.

The square root of 11388197 is about 3374.6402771258. The cubic root of 11388197 is about 224.9840120327.

The spelling of 11388197 in words is "eleven million, three hundred eighty-eight thousand, one hundred ninety-seven".