2091696804 has 96 divisors (see below), whose sum is σ = 5632502400. Its totient is φ = 670481280.

The previous prime is 2091696799. The next prime is 2091696857. The reversal of 2091696804 is 4086961902.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2091696804.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 866359 + ... + 868769.

It is an arithmetic number, because the mean of its divisors is an integer number (58671900).

Almost surely, 2^2091696804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2091696804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2816251200).

2091696804 is an abundant number, since it is smaller than the sum of its proper divisors (3540805596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2091696804 is a wasteful number, since it uses less digits than its factorization.

2091696804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730 (or 2722 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2091696804 is about 45735.0719251648. The cubic root of 2091696804 is about 1278.8891737998.

The spelling of 2091696804 in words is "two billion, ninety-one million, six hundred ninety-six thousand, eight hundred four".