11731797 has 84 divisors (see below), whose sum is σ = 23259040. Its totient is φ = 5773680.

The previous prime is 11731789. The next prime is 11731829. The reversal of 11731797 is 79713711.

It is not a de Polignac number, because 11731797 - 2³ = 11731789 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11731777) 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 83 ways as a sum of consecutive naturals, for example, 617454 + ... + 617472.

Almost surely, 2^11731797 is an apocalyptic number.

It is an amenable number.

11731797 is a deficient number, since it is larger than the sum of its proper divisors (11527243).

11731797 is an equidigital number, since it uses as much as digits as its factorization.

11731797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 40 counting only the distinct ones).

The product of its digits is 9261, while the sum is 36.

The square root of 11731797 is about 3425.1710906172. The cubic root of 11731797 is about 227.2243378531.

The spelling of 11731797 in words is "eleven million, seven hundred thirty-one thousand, seven hundred ninety-seven".