800978211 has 12 divisors (see below), whose sum is σ = 1262147640. Its totient is φ = 485441280.

The previous prime is 800978209. The next prime is 800978219. The reversal of 800978211 is 112879008.

It is not a de Polignac number, because 800978211 - 2¹ = 800978209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (800978219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4045246 + ... + 4045443.

It is an arithmetic number, because the mean of its divisors is an integer number (105178970).

Almost surely, 2^800978211 is an apocalyptic number.

800978211 is a deficient number, since it is larger than the sum of its proper divisors (461169429).

800978211 is a wasteful number, since it uses less digits than its factorization.

800978211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090706 (or 8090703 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 800978211 is about 28301.5584553219. The cubic root of 800978211 is about 928.6959837123.

The spelling of 800978211 in words is "eight hundred million, nine hundred seventy-eight thousand, two hundred eleven".