804989755 has 4 divisors (see below), whose sum is σ = 965987712. Its totient is φ = 643991800.

The previous prime is 804989753. The next prime is 804989767. The reversal of 804989755 is 557989408.

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

It is not a de Polignac number, because 804989755 - 2¹ = 804989753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 804989696 and 804989705.

It is not an unprimeable number, because it can be changed into a prime (804989753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80498971 + ... + 80498980.

It is an arithmetic number, because the mean of its divisors is an integer number (241496928).

Almost surely, 2^804989755 is an apocalyptic number.

804989755 is a deficient number, since it is larger than the sum of its proper divisors (160997957).

804989755 is a wasteful number, since it uses less digits than its factorization.

804989755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160997956.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 804989755 is about 28372.3413732459. The cubic root of 804989755 is about 930.2438004978.

The spelling of 804989755 in words is "eight hundred four million, nine hundred eighty-nine thousand, seven hundred fifty-five".