805488729 has 8 divisors (see below), whose sum is σ = 1074116160. Its totient is φ = 536926896.

The previous prime is 805488721. The next prime is 805488751. The reversal of 805488729 is 927884508.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 805488729 - 2³ = 805488721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (805488721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38787 + ... + 55815.

It is an arithmetic number, because the mean of its divisors is an integer number (134264520).

Almost surely, 2^805488729 is an apocalyptic number.

It is an amenable number.

805488729 is a deficient number, since it is larger than the sum of its proper divisors (268627431).

805488729 is a wasteful number, since it uses less digits than its factorization.

805488729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32799.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 805488729 is about 28381.1333283222. The cubic root of 805488729 is about 930.4359650959.

The spelling of 805488729 in words is "eight hundred five million, four hundred eighty-eight thousand, seven hundred twenty-nine".