2021384783 has 4 divisors (see below), whose sum is σ = 2205147048. Its totient is φ = 1837622520.

The previous prime is 2021384773. The next prime is 2021384797. The reversal of 2021384783 is 3874831202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021384783 - 2²⁰ = 2020336207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021384713) 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 3 ways as a sum of consecutive naturals, for example, 91881116 + ... + 91881137.

It is an arithmetic number, because the mean of its divisors is an integer number (551286762).

Almost surely, 2^2021384783 is an apocalyptic number.

2021384783 is a deficient number, since it is larger than the sum of its proper divisors (183762265).

2021384783 is a wasteful number, since it uses less digits than its factorization.

2021384783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183762264.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 2021384783 is about 44959.8129778139. The cubic root of 2021384783 is about 1264.3956625259.

The spelling of 2021384783 in words is "two billion, twenty-one million, three hundred eighty-four thousand, seven hundred eighty-three".