11943797 has 4 divisors (see below), whose sum is σ = 12031116. Its totient is φ = 11856480.

The previous prime is 11943791. The next prime is 11943817. The reversal of 11943797 is 79734911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79734911 = 1249 ⋅63839.

It can be written as a sum of positive squares in 2 ways, for example, as 9006001 + 2937796 = 3001^2 + 1714^2 .

It is a cyclic number.

It is not a de Polignac number, because 11943797 - 2⁶ = 11943733 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 (11943791) 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, 43454 + ... + 43727.

It is an arithmetic number, because the mean of its divisors is an integer number (3007779).

Almost surely, 2^11943797 is an apocalyptic number.

It is an amenable number.

11943797 is a deficient number, since it is larger than the sum of its proper divisors (87319).

11943797 is an equidigital number, since it uses as much as digits as its factorization.

11943797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87318.

The product of its digits is 47628, while the sum is 41.

The square root of 11943797 is about 3455.9798899878. The cubic root of 11943797 is about 228.5848647422.

The spelling of 11943797 in words is "eleven million, nine hundred forty-three thousand, seven hundred ninety-seven".