811047080 has 32 divisors (see below), whose sum is σ = 1867298400. Its totient is φ = 316873536.

The previous prime is 811047073. The next prime is 811047131. The reversal of 811047080 is 80740118.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 234050 + ... + 237489.

It is an arithmetic number, because the mean of its divisors is an integer number (58353075).

Almost surely, 2^811047080 is an apocalyptic number.

It is an amenable number.

811047080 is an abundant number, since it is smaller than the sum of its proper divisors (1056251320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

811047080 is a wasteful number, since it uses less digits than its factorization.

811047080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471593 (or 471589 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 811047080 is about 28478.8883210002. Note that the first 3 decimals coincide. The cubic root of 811047080 is about 932.5712480930.

Adding to 811047080 its reverse (80740118), we get a palindrome (891787198).

The spelling of 811047080 in words is "eight hundred eleven million, forty-seven thousand, eighty".