805198648 has 32 divisors (see below), whose sum is σ = 1521633600. Its totient is φ = 399443968.

The previous prime is 805198637. The next prime is 805198661. The reversal of 805198648 is 846891508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674340 + ... + 675532.

It is an arithmetic number, because the mean of its divisors is an integer number (47551050).

Almost surely, 2^805198648 is an apocalyptic number.

It is an amenable number.

805198648 is a deficient number, since it is larger than the sum of its proper divisors (716434952).

805198648 is a wasteful number, since it uses less digits than its factorization.

805198648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 805198648 is about 28376.0224132982. The cubic root of 805198648 is about 930.3242589180.

The spelling of 805198648 in words is "eight hundred five million, one hundred ninety-eight thousand, six hundred forty-eight".