11772289 has 8 divisors (see below), whose sum is σ = 12476520. Its totient is φ = 11088000.

The previous prime is 11772287. The next prime is 11772301. The reversal of 11772289 is 98227711.

It can be written as a sum of positive squares in 4 ways, for example, as 1912689 + 9859600 = 1383^2 + 3140^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11772289 - 2¹ = 11772287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11772287) 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, 3762 + ... + 6139.

It is an arithmetic number, because the mean of its divisors is an integer number (1559565).

Almost surely, 2^11772289 is an apocalyptic number.

It is an amenable number.

11772289 is a deficient number, since it is larger than the sum of its proper divisors (704231).

11772289 is an equidigital number, since it uses as much as digits as its factorization.

11772289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9971.

The product of its digits is 14112, while the sum is 37.

The square root of 11772289 is about 3431.0769446341. The cubic root of 11772289 is about 227.4854573484.

The spelling of 11772289 in words is "eleven million, seven hundred seventy-two thousand, two hundred eighty-nine".