11822797 has 4 divisors (see below), whose sum is σ = 13511776. Its totient is φ = 10133820.

The previous prime is 11822779. The next prime is 11822809. The reversal of 11822797 is 79722811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11822797 - 2¹⁹ = 11298509 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 (11822717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844479 + ... + 844492.

It is an arithmetic number, because the mean of its divisors is an integer number (3377944).

Almost surely, 2^11822797 is an apocalyptic number.

It is an amenable number.

11822797 is a deficient number, since it is larger than the sum of its proper divisors (1688979).

11822797 is an equidigital number, since it uses as much as digits as its factorization.

11822797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688978.

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

The square root of 11822797 is about 3438.4294379847. The cubic root of 11822797 is about 227.8103288179.

The spelling of 11822797 in words is "eleven million, eight hundred twenty-two thousand, seven hundred ninety-seven".