11772917 has 8 divisors (see below), whose sum is σ = 12745656. Its totient is φ = 10809792.

The previous prime is 11772911. The next prime is 11772931. The reversal of 11772917 is 71927711.

It can be written as a sum of positive squares in 4 ways, for example, as 790321 + 10982596 = 889^2 + 3314^2 .

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 11772917 - 2¹² = 11768821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11772911) 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, 263 + ... + 4859.

It is an arithmetic number, because the mean of its divisors is an integer number (1593207).

Almost surely, 2^11772917 is an apocalyptic number.

It is an amenable number.

11772917 is a deficient number, since it is larger than the sum of its proper divisors (972739).

11772917 is a wasteful number, since it uses less digits than its factorization.

11772917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4807.

The product of its digits is 6174, while the sum is 35.

The square root of 11772917 is about 3431.1684598690. The cubic root of 11772917 is about 227.4895023937.

The spelling of 11772917 in words is "eleven million, seven hundred seventy-two thousand, nine hundred seventeen".