2104881 has 4 divisors (see below), whose sum is σ = 2806512. Its totient is φ = 1403252.

The previous prime is 2104871. The next prime is 2104901. The reversal of 2104881 is 1884012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2104881 - 2¹⁴ = 2088497 is a prime.

It is a super-2 number, since 2×2104881² = 8861048048322, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2104811) 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, 350811 + ... + 350816.

It is an arithmetic number, because the mean of its divisors is an integer number (701628).

2^2104881 is an apocalyptic number.

It is an amenable number.

2104881 is a deficient number, since it is larger than the sum of its proper divisors (701631).

2104881 is an equidigital number, since it uses as much as digits as its factorization.

2104881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701630.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 2104881 is about 1450.8208021668. The cubic root of 2104881 is about 128.1570541256.

Adding to 2104881 its reverse (1884012), we get a palindrome (3988893).

The spelling of 2104881 in words is "two million, one hundred four thousand, eight hundred eighty-one".