2081704 has 8 divisors (see below), whose sum is σ = 3903210. Its totient is φ = 1040848.

The previous prime is 2081687. The next prime is 2081719. The reversal of 2081704 is 4071802.

It can be written as a sum of positive squares in only one way, i.e., 1684804 + 396900 = 1298^2 + 630^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130099 + ... + 130114.

2^2081704 is an apocalyptic number.

It is an amenable number.

2081704 is a deficient number, since it is larger than the sum of its proper divisors (1821506).

2081704 is a wasteful number, since it uses less digits than its factorization.

2081704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260219 (or 260215 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2081704 is about 1442.8111449528. The cubic root of 2081704 is about 127.6849347552.

The spelling of 2081704 in words is "two million, eighty-one thousand, seven hundred four".