805748885 has 4 divisors (see below), whose sum is σ = 966898668. Its totient is φ = 644599104.

The previous prime is 805748861. The next prime is 805748891. The reversal of 805748885 is 588847508.

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

It can be written as a sum of positive squares in 2 ways, for example, as 581677924 + 224070961 = 24118^2 + 14969^2 .

It is a cyclic number.

It is not a de Polignac number, because 805748885 - 2⁶ = 805748821 is a prime.

It is a Duffinian 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, 80574884 + ... + 80574893.

It is an arithmetic number, because the mean of its divisors is an integer number (241724667).

Almost surely, 2^805748885 is an apocalyptic number.

It is an amenable number.

805748885 is a deficient number, since it is larger than the sum of its proper divisors (161149783).

805748885 is a wasteful number, since it uses less digits than its factorization.

805748885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161149782.

The product of its (nonzero) digits is 2867200, while the sum is 53.

The square root of 805748885 is about 28385.7162143216. The cubic root of 805748885 is about 930.5361247608.

The spelling of 805748885 in words is "eight hundred five million, seven hundred forty-eight thousand, eight hundred eighty-five".