806564395 has 32 divisors (see below), whose sum is σ = 1202439168. Its totient is φ = 505726848.

The previous prime is 806564377. The next prime is 806564399. The reversal of 806564395 is 593465608.

It is a cyclic number.

It is not a de Polignac number, because 806564395 - 2¹⁹ = 806040107 is a prime.

It is a super-2 number, since 2×806564395² = 1301092246563432050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (806564399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40402 + ... + 56968.

It is an arithmetic number, because the mean of its divisors is an integer number (37576224).

Almost surely, 2^806564395 is an apocalyptic number.

806564395 is a deficient number, since it is larger than the sum of its proper divisors (395874773).

806564395 is a wasteful number, since it uses less digits than its factorization.

806564395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16699.

The product of its (nonzero) digits is 777600, while the sum is 46.

The square root of 806564395 is about 28400.0773766552. The cubic root of 806564395 is about 930.8499552254.

The spelling of 806564395 in words is "eight hundred six million, five hundred sixty-four thousand, three hundred ninety-five".