801965899 has 8 divisors (see below), whose sum is σ = 935237600. Its totient is φ = 687399048.

The previous prime is 801965881. The next prime is 801965911. The reversal of 801965899 is 998569108.

It is not a de Polignac number, because 801965899 - 2⁹ = 801965387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801965849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168704 + ... + 1169389.

It is an arithmetic number, because the mean of its divisors is an integer number (116904700).

Almost surely, 2^801965899 is an apocalyptic number.

801965899 is a deficient number, since it is larger than the sum of its proper divisors (133271701).

801965899 is an equidigital number, since it uses as much as digits as its factorization.

801965899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338114 (or 2338100 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 55.

The square root of 801965899 is about 28319.0024365266. The cubic root of 801965899 is about 929.0775526066.

The spelling of 801965899 in words is "eight hundred one million, nine hundred sixty-five thousand, eight hundred ninety-nine".