2116647 has 24 divisors (see below), whose sum is σ = 3348800. Its totient is φ = 1280448.

The previous prime is 2116633. The next prime is 2116651. The reversal of 2116647 is 7466112.

2116647 is a `hidden beast` number, since 2 + 1 + 16 + 647 = 666.

It is not a de Polignac number, because 2116647 - 2⁷ = 2116519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2116647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9129 + ... + 9357.

2^2116647 is an apocalyptic number.

2116647 is a deficient number, since it is larger than the sum of its proper divisors (1232153).

2116647 is a wasteful number, since it uses less digits than its factorization.

2116647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 324 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2116647 is about 1454.8700972939. The cubic root of 2116647 is about 128.3954040921.

The spelling of 2116647 in words is "two million, one hundred sixteen thousand, six hundred forty-seven".