11822869 has 8 divisors (see below), whose sum is σ = 12373560. Its totient is φ = 11284416.

The previous prime is 11822857. The next prime is 11822911. The reversal of 11822869 is 96822811.

11822869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8352100 + 3470769 = 2890^2 + 1863^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11822869 is a prime.

It is a super-2 number, since 2×11822869² = 279560462782322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11822809) 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, 1054 + ... + 4975.

It is an arithmetic number, because the mean of its divisors is an integer number (1546695).

Almost surely, 2^11822869 is an apocalyptic number.

It is an amenable number.

11822869 is a deficient number, since it is larger than the sum of its proper divisors (550691).

11822869 is an equidigital number, since it uses as much as digits as its factorization.

11822869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6119.

The product of its digits is 13824, while the sum is 37.

The square root of 11822869 is about 3438.4399078652. The cubic root of 11822869 is about 227.8107912666.

The spelling of 11822869 in words is "eleven million, eight hundred twenty-two thousand, eight hundred sixty-nine".