806389960 has 16 divisors (see below), whose sum is σ = 1814377500. Its totient is φ = 322555968.

The previous prime is 806389943. The next prime is 806389999. The reversal of 806389960 is 69983608.

It can be written as a sum of positive squares in 2 ways, for example, as 673817764 + 132572196 = 25958^2 + 11514^2 .

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, 10079835 + ... + 10079914.

Almost surely, 2^806389960 is an apocalyptic number.

It is an amenable number.

806389960 is an abundant number, since it is smaller than the sum of its proper divisors (1007987540).

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

806389960 is a wasteful number, since it uses less digits than its factorization.

806389960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20159760 (or 20159756 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 806389960 is about 28397.0061802296. The cubic root of 806389960 is about 930.7828456762.

The spelling of 806389960 in words is "eight hundred six million, three hundred eighty-nine thousand, nine hundred sixty".