806396865 has 16 divisors (see below), whose sum is σ = 1292202816. Its totient is φ = 429422400.

The previous prime is 806396849. The next prime is 806396869. The reversal of 806396865 is 568693608.

806396865 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 806396865 - 2⁴ = 806396849 is a prime.

It is a super-3 number, since 3×806396865³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (806396869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30751 + ... + 50580.

It is an arithmetic number, because the mean of its divisors is an integer number (80762676).

Almost surely, 2^806396865 is an apocalyptic number.

It is an amenable number.

806396865 is a deficient number, since it is larger than the sum of its proper divisors (485805951).

806396865 is a wasteful number, since it uses less digits than its factorization.

806396865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82000.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The square root of 806396865 is about 28397.1277596872. The cubic root of 806396865 is about 930.7855023880.

The spelling of 806396865 in words is "eight hundred six million, three hundred ninety-six thousand, eight hundred sixty-five".