11969898 has 8 divisors (see below), whose sum is σ = 23939808. Its totient is φ = 3989964.

The previous prime is 11969879. The next prime is 11969911. The reversal of 11969898 is 89896911.

It is a happy number.

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

11969898 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 11969898.

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 3 ways as a sum of consecutive naturals, for example, 997486 + ... + 997497.

It is an arithmetic number, because the mean of its divisors is an integer number (2992476).

Almost surely, 2^11969898 is an apocalyptic number.

11969898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11969898 is a wasteful number, since it uses less digits than its factorization.

11969898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994988.

The product of its digits is 279936, while the sum is 51.

The square root of 11969898 is about 3459.7540375004. The cubic root of 11969898 is about 228.7512538377.

The spelling of 11969898 in words is "eleven million, nine hundred sixty-nine thousand, eight hundred ninety-eight".