11712369 has 4 divisors (see below), whose sum is σ = 15616496. Its totient is φ = 7808244.

The previous prime is 11712367. The next prime is 11712397. The reversal of 11712369 is 96321711.

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.

It is not a de Polignac number, because 11712369 - 2¹ = 11712367 is a prime.

It is a super-2 number, since 2×11712369² = 274359175184322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11712367) 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, 1952059 + ... + 1952064.

It is an arithmetic number, because the mean of its divisors is an integer number (3904124).

Almost surely, 2^11712369 is an apocalyptic number.

It is an amenable number.

11712369 is a deficient number, since it is larger than the sum of its proper divisors (3904127).

11712369 is an equidigital number, since it uses as much as digits as its factorization.

11712369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904126.

The product of its digits is 2268, while the sum is 30.

The square root of 11712369 is about 3422.3338527969. Note that the first 3 decimals coincide. The cubic root of 11712369 is about 227.0988397869.

The spelling of 11712369 in words is "eleven million, seven hundred twelve thousand, three hundred sixty-nine".