805429089 has 28 divisors (see below), whose sum is σ = 1210029696. Its totient is φ = 535869432.

The previous prime is 805429081. The next prime is 805429099. The reversal of 805429089 is 980924508.

It is not a de Polignac number, because 805429089 - 2³ = 805429081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805429081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 540904 + ... + 542390.

Almost surely, 2^805429089 is an apocalyptic number.

It is an amenable number.

805429089 is a deficient number, since it is larger than the sum of its proper divisors (404600607).

805429089 is an equidigital number, since it uses as much as digits as its factorization.

805429089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248 (or 2233 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 805429089 is about 28380.0826108734. The cubic root of 805429089 is about 930.4130007478.

The spelling of 805429089 in words is "eight hundred five million, four hundred twenty-nine thousand, eighty-nine".