800643486 has 16 divisors (see below), whose sum is σ = 1605095568. Its totient is φ = 266246400.

The previous prime is 800643461. The next prime is 800643491. The reversal of 800643486 is 684346008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155955 + ... + 161006.

It is an arithmetic number, because the mean of its divisors is an integer number (100318473).

Almost surely, 2^800643486 is an apocalyptic number.

800643486 is an abundant number, since it is smaller than the sum of its proper divisors (804452082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800643486 is a wasteful number, since it uses less digits than its factorization.

800643486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317387.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 800643486 is about 28295.6442937778. The cubic root of 800643486 is about 928.5665998036.

The spelling of 800643486 in words is "eight hundred million, six hundred forty-three thousand, four hundred eighty-six".