2116916 has 6 divisors (see below), whose sum is σ = 3704610. Its totient is φ = 1058456.

The previous prime is 2116903. The next prime is 2116921. The reversal of 2116916 is 6196112.

It can be written as a sum of positive squares in only one way, i.e., 1948816 + 168100 = 1396^2 + 410^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264611 + ... + 264618.

It is an arithmetic number, because the mean of its divisors is an integer number (617435).

2^2116916 is an apocalyptic number.

It is an amenable number.

2116916 is a deficient number, since it is larger than the sum of its proper divisors (1587694).

2116916 is a wasteful number, since it uses less digits than its factorization.

2116916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529233 (or 529231 counting only the distinct ones).

The product of its digits is 648, while the sum is 26.

The square root of 2116916 is about 1454.9625424732. The cubic root of 2116916 is about 128.4008430246.

The spelling of 2116916 in words is "two million, one hundred sixteen thousand, nine hundred sixteen".