11988417 has 16 divisors (see below), whose sum is σ = 19343232. Its totient is φ = 6447360.

The previous prime is 11988401. The next prime is 11988433. The reversal of 11988417 is 71488911.

It is an interprime number because it is at equal distance from previous prime (11988401) and next prime (11988433).

It is not a de Polignac number, because 11988417 - 2⁴ = 11988401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11988467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16434 + ... + 17147.

It is an arithmetic number, because the mean of its divisors is an integer number (1208952).

Almost surely, 2^11988417 is an apocalyptic number.

11988417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11988417 is a deficient number, since it is larger than the sum of its proper divisors (7354815).

11988417 is a wasteful number, since it uses less digits than its factorization.

11988417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33608.

The product of its digits is 16128, while the sum is 39.

The square root of 11988417 is about 3462.4293494597. The cubic root of 11988417 is about 228.8691624356.

The spelling of 11988417 in words is "eleven million, nine hundred eighty-eight thousand, four hundred seventeen".