2105704 has 8 divisors (see below), whose sum is σ = 3948210. Its totient is φ = 1052848.

The previous prime is 2105699. The next prime is 2105717. The reversal of 2105704 is 4075012.

It can be written as a sum of positive squares in only one way, i.e., 1612900 + 492804 = 1270^2 + 702^2 .

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 (19) 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, 131599 + ... + 131614.

2^2105704 is an apocalyptic number.

It is an amenable number.

2105704 is a deficient number, since it is larger than the sum of its proper divisors (1842506).

2105704 is a wasteful number, since it uses less digits than its factorization.

2105704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263219 (or 263215 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2105704 is about 1451.1044069949. The cubic root of 2105704 is about 128.1737549133.

It can be divided in two parts, 2105 and 704, that added together give a square (2809 = 53²).

The spelling of 2105704 in words is "two million, one hundred five thousand, seven hundred four".