805842163 has 4 divisors (see below), whose sum is σ = 920962480. Its totient is φ = 690721848.

The previous prime is 805842139. The next prime is 805842181. The reversal of 805842163 is 361248508.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 805842163 - 2²⁵ = 772287731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805842463) 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, 57560148 + ... + 57560161.

It is an arithmetic number, because the mean of its divisors is an integer number (230240620).

Almost surely, 2^805842163 is an apocalyptic number.

805842163 is a deficient number, since it is larger than the sum of its proper divisors (115120317).

805842163 is a wasteful number, since it uses less digits than its factorization.

805842163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115120316.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 805842163 is about 28387.3592114518. The cubic root of 805842163 is about 930.5720313983.

The spelling of 805842163 in words is "eight hundred five million, eight hundred forty-two thousand, one hundred sixty-three".