2117696 has 56 divisors (see below), whose sum is σ = 4998720. Its totient is φ = 870912.

The previous prime is 2117677. The next prime is 2117699. The reversal of 2117696 is 6967112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (2117699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12911 + ... + 13073.

2^2117696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2117696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2499360).

2117696 is an abundant number, since it is smaller than the sum of its proper divisors (2881024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2117696 is a wasteful number, since it uses less digits than its factorization.

2117696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 201 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 2117696 is about 1455.2305659242. The cubic root of 2117696 is about 128.4166113025.

The spelling of 2117696 in words is "two million, one hundred seventeen thousand, six hundred ninety-six".