2085928021 has 8 divisors (see below), whose sum is σ = 2143272960. Its totient is φ = 2028634128.

The previous prime is 2085928003. The next prime is 2085928051. The reversal of 2085928021 is 1208295802.

It is the 18646-th star number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2085928021 - 2⁵ = 2085927989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085928051) 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 7 ways as a sum of consecutive naturals, for example, 79020 + ... + 102058.

It is an arithmetic number, because the mean of its divisors is an integer number (267909120).

Almost surely, 2^2085928021 is an apocalyptic number.

It is an amenable number.

2085928021 is a deficient number, since it is larger than the sum of its proper divisors (57344939).

2085928021 is a wasteful number, since it uses less digits than its factorization.

2085928021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25523.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 2085928021 is about 45671.9609935899. The cubic root of 2085928021 is about 1277.7123896551.

The spelling of 2085928021 in words is "two billion, eighty-five million, nine hundred twenty-eight thousand, twenty-one".