2104489 has 4 divisors (see below), whose sum is σ = 2155860. Its totient is φ = 2053120.

The previous prime is 2104483. The next prime is 2104499. The reversal of 2104489 is 9844012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 912025 + 1192464 = 955^2 + 1092^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104489 - 2⁹ = 2103977 is a prime.

It is a super-2 number, since 2×2104489² = 8857747902242, which contains 22 as substring.

It is a Duffinian number.

2104489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2104483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25624 + ... + 25705.

It is an arithmetic number, because the mean of its divisors is an integer number (538965).

2^2104489 is an apocalyptic number.

It is an amenable number.

2104489 is a deficient number, since it is larger than the sum of its proper divisors (51371).

2104489 is an equidigital number, since it uses as much as digits as its factorization.

2104489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51370.

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

The square root of 2104489 is about 1450.6856999364. The cubic root of 2104489 is about 128.1490979064.

The spelling of 2104489 in words is "two million, one hundred four thousand, four hundred eighty-nine".