11998822 has 16 divisors (see below), whose sum is σ = 19958544. Its totient is φ = 5364000.

The previous prime is 11998817. The next prime is 11998843. The reversal of 11998822 is 22889911.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3129 + ... + 5812.

It is an arithmetic number, because the mean of its divisors is an integer number (1247409).

Almost surely, 2^11998822 is an apocalyptic number.

11998822 is a deficient number, since it is larger than the sum of its proper divisors (7959722).

11998822 is a wasteful number, since it uses less digits than its factorization.

11998822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9015.

The product of its digits is 20736, while the sum is 40.

The square root of 11998822 is about 3463.9315813105. The cubic root of 11998822 is about 228.9353567467.

The spelling of 11998822 in words is "eleven million, nine hundred ninety-eight thousand, eight hundred twenty-two".