806880161 has 4 divisors (see below), whose sum is σ = 824047872. Its totient is φ = 789712452.

The previous prime is 806880157. The next prime is 806880187. The reversal of 806880161 is 161088608.

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 not a de Polignac number, because 806880161 - 2² = 806880157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806880761) 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, 8583785 + ... + 8583878.

It is an arithmetic number, because the mean of its divisors is an integer number (206011968).

Almost surely, 2^806880161 is an apocalyptic number.

It is an amenable number.

806880161 is a deficient number, since it is larger than the sum of its proper divisors (17167711).

806880161 is a wasteful number, since it uses less digits than its factorization.

806880161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17167710.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 806880161 is about 28405.6360780744. The cubic root of 806880161 is about 930.9714137721.

The spelling of 806880161 in words is "eight hundred six million, eight hundred eighty thousand, one hundred sixty-one".