805998107 has 8 divisors (see below), whose sum is σ = 851188800. Its totient is φ = 761084424.

The previous prime is 805998091. The next prime is 805998133. The reversal of 805998107 is 701899508.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 805998107 - 2⁴ = 805998091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805998197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63257 + ... + 74922.

It is an arithmetic number, because the mean of its divisors is an integer number (106398600).

Almost surely, 2^805998107 is an apocalyptic number.

805998107 is a deficient number, since it is larger than the sum of its proper divisors (45190693).

805998107 is a wasteful number, since it uses less digits than its factorization.

805998107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138505.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 805998107 is about 28390.1057940966. The cubic root of 805998107 is about 930.6320546352.

The spelling of 805998107 in words is "eight hundred five million, nine hundred ninety-eight thousand, one hundred seven".