11998473 has 4 divisors (see below), whose sum is σ = 15997968. Its totient is φ = 7998980.

The previous prime is 11998439. The next prime is 11998487. The reversal of 11998473 is 37489911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11998473 - 2¹⁰ = 11997449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11998673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1999743 + ... + 1999748.

It is an arithmetic number, because the mean of its divisors is an integer number (3999492).

Almost surely, 2^11998473 is an apocalyptic number.

It is an amenable number.

11998473 is a deficient number, since it is larger than the sum of its proper divisors (3999495).

11998473 is an equidigital number, since it uses as much as digits as its factorization.

11998473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999494.

The product of its digits is 54432, while the sum is 42.

The square root of 11998473 is about 3463.8812046605. The cubic root of 11998473 is about 228.9331371062.

The spelling of 11998473 in words is "eleven million, nine hundred ninety-eight thousand, four hundred seventy-three".