11939798 has 8 divisors (see below), whose sum is σ = 19287408. Its totient is φ = 5510664.

The previous prime is 11939791. The next prime is 11939813. The reversal of 11939798 is 89793911.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11939791) 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, 229586 + ... + 229637.

It is an arithmetic number, because the mean of its divisors is an integer number (2410926).

Almost surely, 2^11939798 is an apocalyptic number.

11939798 is a deficient number, since it is larger than the sum of its proper divisors (7347610).

11939798 is a wasteful number, since it uses less digits than its factorization.

11939798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459238.

The product of its digits is 122472, while the sum is 47.

The square root of 11939798 is about 3455.4012791570. The cubic root of 11939798 is about 228.5593504406.

The spelling of 11939798 in words is "eleven million, nine hundred thirty-nine thousand, seven hundred ninety-eight".