2104665 has 16 divisors (see below), whose sum is σ = 3389568. Its totient is φ = 1115136.

The previous prime is 2104657. The next prime is 2104673. The reversal of 2104665 is 5664012.

It is an interprime number because it is at equal distance from previous prime (2104657) and next prime (2104673).

It is not a de Polignac number, because 2104665 - 2³ = 2104657 is a prime.

It is a super-2 number, since 2×2104665² = 8859229524450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2532 + ... + 3258.

It is an arithmetic number, because the mean of its divisors is an integer number (211848).

2^2104665 is an apocalyptic number.

It is an amenable number.

2104665 is a deficient number, since it is larger than the sum of its proper divisors (1284903).

2104665 is a wasteful number, since it uses less digits than its factorization.

2104665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2104665 is about 1450.7463596370. The cubic root of 2104665 is about 128.1526702087.

Adding to 2104665 its reverse (5664012), we get a palindrome (7768677).

The spelling of 2104665 in words is "two million, one hundred four thousand, six hundred sixty-five".