11916797 has 4 divisors (see below), whose sum is σ = 11923740. Its totient is φ = 11909856.

The previous prime is 11916787. The next prime is 11916799. The reversal of 11916797 is 79761911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2343961 + 9572836 = 1531^2 + 3094^2 .

It is a cyclic number.

It is not a de Polignac number, because 11916797 - 2¹⁸ = 11654653 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 (11916799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193 + ... + 5025.

It is an arithmetic number, because the mean of its divisors is an integer number (2980935).

Almost surely, 2^11916797 is an apocalyptic number.

It is an amenable number.

11916797 is a deficient number, since it is larger than the sum of its proper divisors (6943).

11916797 is an equidigital number, since it uses as much as digits as its factorization.

11916797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942.

The product of its digits is 23814, while the sum is 41.

The square root of 11916797 is about 3452.0714071409. The cubic root of 11916797 is about 228.4124894129.

The spelling of 11916797 in words is "eleven million, nine hundred sixteen thousand, seven hundred ninety-seven".