11772489 has 4 divisors (see below), whose sum is σ = 15696656. Its totient is φ = 7848324.

The previous prime is 11772473. The next prime is 11772499. The reversal of 11772489 is 98427711.

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 11772489 - 2⁴ = 11772473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11772499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1962079 + ... + 1962084.

It is an arithmetic number, because the mean of its divisors is an integer number (3924164).

Almost surely, 2^11772489 is an apocalyptic number.

It is an amenable number.

11772489 is a deficient number, since it is larger than the sum of its proper divisors (3924167).

11772489 is an equidigital number, since it uses as much as digits as its factorization.

11772489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924166.

The product of its digits is 28224, while the sum is 39.

The square root of 11772489 is about 3431.1060898783. The cubic root of 11772489 is about 227.4867455950.

The spelling of 11772489 in words is "eleven million, seven hundred seventy-two thousand, four hundred eighty-nine".