801059809 has 27 divisors (see below), whose sum is σ = 920917137. Its totient is φ = 696253800.

The previous prime is 801059807. The next prime is 801059821. The reversal of 801059809 is 908950108.

The square root of 801059809 is 28303.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 801059809 - 2¹ = 801059807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801059803) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9651282 + ... + 9651364.

Almost surely, 2^801059809 is an apocalyptic number.

801059809 is the 28303-rd square number.

801059809 is the 14152-nd centered octagonal number.

It is an amenable number.

801059809 is a deficient number, since it is larger than the sum of its proper divisors (119857328).

801059809 is an equidigital number, since it uses as much as digits as its factorization.

801059809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 40.

The cubic root of 801059809 is about 928.7275189695.

The spelling of 801059809 in words is "eight hundred one million, fifty-nine thousand, eight hundred nine".