11998479 has 8 divisors (see below), whose sum is σ = 16693632. Its totient is φ = 7651160.

The previous prime is 11998439. The next prime is 11998487. The reversal of 11998479 is 97489911.

11998479 = T₂ + T₃ + ... + T₄₁₅.

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

It is a cyclic number.

It is not a de Polignac number, because 11998479 - 2⁸ = 11998223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11998439) by changing a digit.

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, 86877 + ... + 87014.

It is an arithmetic number, because the mean of its divisors is an integer number (2086704).

Almost surely, 2^11998479 is an apocalyptic number.

11998479 is a deficient number, since it is larger than the sum of its proper divisors (4695153).

11998479 is a wasteful number, since it uses less digits than its factorization.

11998479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173917.

The product of its digits is 163296, while the sum is 48.

The square root of 11998479 is about 3463.8820707409. The cubic root of 11998479 is about 228.9331752666.

The spelling of 11998479 in words is "eleven million, nine hundred ninety-eight thousand, four hundred seventy-nine".