2083516821 has 24 divisors (see below), whose sum is σ = 3196874304. Its totient is φ = 1303071360.

The previous prime is 2083516819. The next prime is 2083516823. The reversal of 2083516821 is 1286153802.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2083516819) and next prime (2083516823).

It is not a de Polignac number, because 2083516821 - 2¹ = 2083516819 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2083516823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25690 + ... + 69476.

It is an arithmetic number, because the mean of its divisors is an integer number (133203096).

Almost surely, 2^2083516821 is an apocalyptic number.

It is an amenable number.

2083516821 is a deficient number, since it is larger than the sum of its proper divisors (1113357483).

2083516821 is a wasteful number, since it uses less digits than its factorization.

2083516821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44121 (or 44118 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2083516821 is about 45645.5564211896. The cubic root of 2083516821 is about 1277.2198817764.

The spelling of 2083516821 in words is "two billion, eighty-three million, five hundred sixteen thousand, eight hundred twenty-one".