806844872 has 16 divisors (see below), whose sum is σ = 1513201740. Its totient is φ = 403324416.

The previous prime is 806844869. The next prime is 806844881. The reversal of 806844872 is 278448608.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 699390916 + 107453956 = 26446^2 + 10366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32228 + ... + 51500.

Almost surely, 2^806844872 is an apocalyptic number.

It is an amenable number.

806844872 is a deficient number, since it is larger than the sum of its proper divisors (706356868).

806844872 is a wasteful number, since it uses less digits than its factorization.

806844872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24512 (or 24508 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 47.

The square root of 806844872 is about 28405.0149093430. The cubic root of 806844872 is about 930.9578415257.

The spelling of 806844872 in words is "eight hundred six million, eight hundred forty-four thousand, eight hundred seventy-two".