808075021 has 12 divisors (see below), whose sum is σ = 883213632. Its totient is φ = 738927696.

The previous prime is 808075019. The next prime is 808075057. The reversal of 808075021 is 120570808.

It is not a de Polignac number, because 808075021 - 2¹ = 808075019 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 (808075001) 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, 4261 + ... + 40426.

It is an arithmetic number, because the mean of its divisors is an integer number (73601136).

Almost surely, 2^808075021 is an apocalyptic number.

It is an amenable number.

808075021 is a deficient number, since it is larger than the sum of its proper divisors (75138611).

808075021 is a wasteful number, since it uses less digits than its factorization.

808075021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44820 (or 44807 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 808075021 is about 28426.6603912595. The cubic root of 808075021 is about 931.4307268659.

The spelling of 808075021 in words is "eight hundred eight million, seventy-five thousand, twenty-one".