11982715 has 4 divisors (see below), whose sum is σ = 14379264. Its totient is φ = 9586168.

The previous prime is 11982703. The next prime is 11982721. The reversal of 11982715 is 51728911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51728911 = 13 ⋅3979147.

It is a cyclic number.

It is not a de Polignac number, because 11982715 - 2⁷ = 11982587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198267 + ... + 1198276.

It is an arithmetic number, because the mean of its divisors is an integer number (3594816).

Almost surely, 2^11982715 is an apocalyptic number.

11982715 is a deficient number, since it is larger than the sum of its proper divisors (2396549).

11982715 is an equidigital number, since it uses as much as digits as its factorization.

11982715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396548.

The product of its digits is 5040, while the sum is 34.

The square root of 11982715 is about 3461.6058412246. The cubic root of 11982715 is about 228.8328713245.

The spelling of 11982715 in words is "eleven million, nine hundred eighty-two thousand, seven hundred fifteen".