2104877409 has 16 divisors (see below), whose sum is σ = 2836334592. Its totient is φ = 1388361168.

The previous prime is 2104877381. The next prime is 2104877413. The reversal of 2104877409 is 9047784012.

It is a happy number.

It is not a de Polignac number, because 2104877409 - 2⁵ = 2104877377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2104877459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437314 + ... + 442100.

It is an arithmetic number, because the mean of its divisors is an integer number (177270912).

Almost surely, 2^2104877409 is an apocalyptic number.

It is an amenable number.

2104877409 is a deficient number, since it is larger than the sum of its proper divisors (731457183).

2104877409 is a wasteful number, since it uses less digits than its factorization.

2104877409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 2104877409 is about 45878.9429804131. The cubic root of 2104877409 is about 1281.5698124546.

The spelling of 2104877409 in words is "two billion, one hundred four million, eight hundred seventy-seven thousand, four hundred nine".