2117648 has 20 divisors (see below), whose sum is σ = 4418988. Its totient is φ = 977280.

The previous prime is 2117623. The next prime is 2117651. The reversal of 2117648 is 8467112.

It can be written as a sum of positive squares in 2 ways, for example, as 753424 + 1364224 = 868^2 + 1168^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2117648.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4883 + ... + 5298.

2^2117648 is an apocalyptic number.

It is an amenable number.

2117648 is an abundant number, since it is smaller than the sum of its proper divisors (2301340).

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

2117648 is a wasteful number, since it uses less digits than its factorization.

2117648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10202 (or 10196 counting only the distinct ones).

The product of its digits is 2688, while the sum is 29.

The square root of 2117648 is about 1455.2140735988. The cubic root of 2117648 is about 128.4156410587.

The spelling of 2117648 in words is "two million, one hundred seventeen thousand, six hundred forty-eight".