806085281 has 4 divisors (see below), whose sum is σ = 832088064. Its totient is φ = 780082500.

The previous prime is 806085271. The next prime is 806085283. The reversal of 806085281 is 182580608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806085281 is a prime.

It is a super-2 number, since 2×806085281² = 1299546960489697922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806085283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13001345 + ... + 13001406.

It is an arithmetic number, because the mean of its divisors is an integer number (208022016).

Almost surely, 2^806085281 is an apocalyptic number.

It is an amenable number.

806085281 is a deficient number, since it is larger than the sum of its proper divisors (26002783).

806085281 is a wasteful number, since it uses less digits than its factorization.

806085281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26002782.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 806085281 is about 28391.6410409825. The cubic root of 806085281 is about 930.6656047529.

The spelling of 806085281 in words is "eight hundred six million, eighty-five thousand, two hundred eighty-one".