2104933889 has 4 divisors (see below), whose sum is σ = 2116563540. Its totient is φ = 2093304240.

The previous prime is 2104933861. The next prime is 2104933921. The reversal of 2104933889 is 9883394012.

It is a happy number.

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 1140210289 + 964723600 = 33767^2 + 31060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2104933889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2104933189) 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, 5814554 + ... + 5814915.

It is an arithmetic number, because the mean of its divisors is an integer number (529140885).

Almost surely, 2^2104933889 is an apocalyptic number.

It is an amenable number.

2104933889 is a deficient number, since it is larger than the sum of its proper divisors (11629651).

2104933889 is a wasteful number, since it uses less digits than its factorization.

2104933889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11629650.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 2104933889 is about 45879.5585092097. The cubic root of 2104933889 is about 1281.5812751040.

The spelling of 2104933889 in words is "two billion, one hundred four million, nine hundred thirty-three thousand, eight hundred eighty-nine".