806082021 has 12 divisors (see below), whose sum is σ = 1165464300. Its totient is φ = 536869440.

The previous prime is 806082019. The next prime is 806082023. The reversal of 806082021 is 120280608.

806082021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (806082019) and next prime (806082023).

It can be written as a sum of positive squares in 2 ways, for example, as 393585921 + 412496100 = 19839^2 + 20310^2 .

It is not a de Polignac number, because 806082021 - 2¹ = 806082019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806082023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33250 + ... + 52131.

It is an arithmetic number, because the mean of its divisors is an integer number (97122025).

Almost surely, 2^806082021 is an apocalyptic number.

It is an amenable number.

806082021 is a deficient number, since it is larger than the sum of its proper divisors (359382279).

806082021 is a wasteful number, since it uses less digits than its factorization.

806082021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86436 (or 86433 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 806082021 is about 28391.5836296604. The cubic root of 806082021 is about 930.6643501404.

The spelling of 806082021 in words is "eight hundred six million, eighty-two thousand, twenty-one".