2091706652 has 12 divisors (see below), whose sum is σ = 4183413360. Its totient is φ = 896445696.

The previous prime is 2091706651. The next prime is 2091706657. The reversal of 2091706652 is 2566071902.

It is a happy number.

2091706652 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091706651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37351877 + ... + 37351932.

It is an arithmetic number, because the mean of its divisors is an integer number (348617780).

Almost surely, 2^2091706652 is an apocalyptic number.

It is an amenable number.

2091706652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2091706652 is a wasteful number, since it uses less digits than its factorization.

2091706652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74703820 (or 74703818 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 2091706652 is about 45735.1795885837. The cubic root of 2091706652 is about 1278.8911808595.

The spelling of 2091706652 in words is "two billion, ninety-one million, seven hundred six thousand, six hundred fifty-two".