2109698804 has 12 divisors (see below), whose sum is σ = 3715489764. Its totient is φ = 1048130304.

The previous prime is 2109698803. The next prime is 2109698837. The reversal of 2109698804 is 4088969012.

It can be written as a sum of positive squares in 2 ways, for example, as 350064100 + 1759634704 = 18710^2 + 41948^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109698803) 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, 1679069 + ... + 1680324.

It is an arithmetic number, because the mean of its divisors is an integer number (309624147).

Almost surely, 2^2109698804 is an apocalyptic number.

It is an amenable number.

2109698804 is a deficient number, since it is larger than the sum of its proper divisors (1605790960).

2109698804 is a wasteful number, since it uses less digits than its factorization.

2109698804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359554 (or 3359552 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 2109698804 is about 45931.4576733637. The cubic root of 2109698804 is about 1282.5475800042.

The spelling of 2109698804 in words is "two billion, one hundred nine million, six hundred ninety-eight thousand, eight hundred four".