2117824 has 14 divisors (see below), whose sum is σ = 4202684. Its totient is φ = 1058880.

The previous prime is 2117821. The next prime is 2117833. The reversal of 2117824 is 4287112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2117821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16482 + ... + 16609.

2^2117824 is an apocalyptic number.

It is an amenable number.

2117824 is a deficient number, since it is larger than the sum of its proper divisors (2084860).

2117824 is an equidigital number, since it uses as much as digits as its factorization.

2117824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33103 (or 33093 counting only the distinct ones).

The product of its digits is 896, while the sum is 25.

The square root of 2117824 is about 1455.2745445448. The cubic root of 2117824 is about 128.4191985475.

The spelling of 2117824 in words is "two million, one hundred seventeen thousand, eight hundred twenty-four".