11197439 has 8 divisors (see below), whose sum is σ = 12335232. Its totient is φ = 10079640.

The previous prime is 11197427. The next prime is 11197453. The reversal of 11197439 is 93479111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11197439 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 11197399 and 11197408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11197489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3809 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (1541904).

Almost surely, 2^11197439 is an apocalyptic number.

11197439 is a deficient number, since it is larger than the sum of its proper divisors (1137793).

11197439 is a wasteful number, since it uses less digits than its factorization.

11197439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9997.

The product of its digits is 6804, while the sum is 35.

The square root of 11197439 is about 3346.2574617026. The cubic root of 11197439 is about 223.7207337688.

It can be divided in two parts, 1119 and 7439, that added together give a palindrome (8558).

The spelling of 11197439 in words is "eleven million, one hundred ninety-seven thousand, four hundred thirty-nine".