11822939 has 4 divisors (see below), whose sum is σ = 12518424. Its totient is φ = 11127456.

The previous prime is 11822929. The next prime is 11822957. The reversal of 11822939 is 93922811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11822939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11822899 and 11822908.

It is not an unprimeable number, because it can be changed into a prime (11822929) 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, 347717 + ... + 347750.

It is an arithmetic number, because the mean of its divisors is an integer number (3129606).

Almost surely, 2^11822939 is an apocalyptic number.

11822939 is a deficient number, since it is larger than the sum of its proper divisors (695485).

11822939 is an equidigital number, since it uses as much as digits as its factorization.

11822939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695484.

The product of its digits is 7776, while the sum is 35.

The square root of 11822939 is about 3438.4500868851. The cubic root of 11822939 is about 227.8112408677.

The spelling of 11822939 in words is "eleven million, eight hundred twenty-two thousand, nine hundred thirty-nine".