801945895 has 4 divisors (see below), whose sum is σ = 962335080. Its totient is φ = 641556712.

The previous prime is 801945889. The next prime is 801945929. The reversal of 801945895 is 598549108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 801945895 - 2⁹ = 801945383 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 80194585 + ... + 80194594.

It is an arithmetic number, because the mean of its divisors is an integer number (240583770).

Almost surely, 2^801945895 is an apocalyptic number.

801945895 is a deficient number, since it is larger than the sum of its proper divisors (160389185).

801945895 is a wasteful number, since it uses less digits than its factorization.

801945895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160389184.

The product of its (nonzero) digits is 518400, while the sum is 49.

The square root of 801945895 is about 28318.6492439170. The cubic root of 801945895 is about 929.0698276639.

The spelling of 801945895 in words is "eight hundred one million, nine hundred forty-five thousand, eight hundred ninety-five".