800895461 has 2 divisors, whose sum is σ = 800895462. Its totient is φ = 800895460.

The previous prime is 800895457. The next prime is 800895503. The reversal of 800895461 is 164598008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 764522500 + 36372961 = 27650^2 + 6031^2 .

It is a cyclic number.

It is not a de Polignac number, because 800895461 - 2² = 800895457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800892461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400447730 + 400447731.

It is an arithmetic number, because the mean of its divisors is an integer number (400447731).

Almost surely, 2^800895461 is an apocalyptic number.

It is an amenable number.

800895461 is a deficient number, since it is larger than the sum of its proper divisors (1).

800895461 is an equidigital number, since it uses as much as digits as its factorization.

800895461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 800895461 is about 28300.0964839345. The cubic root of 800895461 is about 928.6640010532.

The spelling of 800895461 in words is "eight hundred million, eight hundred ninety-five thousand, four hundred sixty-one".