2116648 has 8 divisors (see below), whose sum is σ = 3968730. Its totient is φ = 1058320.

The previous prime is 2116633. The next prime is 2116651. The reversal of 2116648 is 8466112.

It can be written as a sum of positive squares in only one way, i.e., 1844164 + 272484 = 1358^2 + 522^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132283 + ... + 132298.

2^2116648 is an apocalyptic number.

It is an amenable number.

2116648 is a deficient number, since it is larger than the sum of its proper divisors (1852082).

2116648 is a wasteful number, since it uses less digits than its factorization.

2116648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264587 (or 264583 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 2116648 is about 1454.8704409672. The cubic root of 2116648 is about 128.3954243120.

It can be divided in two parts, 211 and 6648, that added together give a cube (6859 = 19³).

The spelling of 2116648 in words is "two million, one hundred sixteen thousand, six hundred forty-eight".