11996215 has 16 divisors (see below), whose sum is σ = 17948160. Its totient is φ = 7477920.

The previous prime is 11996209. The next prime is 11996249. The reversal of 11996215 is 51269911.

It is a happy number.

It is not a de Polignac number, because 11996215 - 2³ = 11996207 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 15195 + ... + 15964.

It is an arithmetic number, because the mean of its divisors is an integer number (1121760).

Almost surely, 2^11996215 is an apocalyptic number.

11996215 is a deficient number, since it is larger than the sum of its proper divisors (5951945).

11996215 is a wasteful number, since it uses less digits than its factorization.

11996215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31182.

The product of its digits is 4860, while the sum is 34.

The square root of 11996215 is about 3463.5552543593. Note that the first 3 decimals coincide. The cubic root of 11996215 is about 228.9187751827.

The spelling of 11996215 in words is "eleven million, nine hundred ninety-six thousand, two hundred fifteen".