811027080 has 256 divisors, whose sum is σ = 2796134400. Its totient is φ = 211631616.

The previous prime is 811027051. The next prime is 811027097. The reversal of 811027080 is 80720118.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6385977 + ... + 6386103.

It is an arithmetic number, because the mean of its divisors is an integer number (10922400).

Almost surely, 2^811027080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811027080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1398067200).

811027080 is an abundant number, since it is smaller than the sum of its proper divisors (1985107320).

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

811027080 is a wasteful number, since it uses less digits than its factorization.

811027080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 811027080 is about 28478.5371815337. The cubic root of 811027080 is about 932.5635824557.

Adding to 811027080 its reverse (80720118), we get a palindrome (891747198).

The spelling of 811027080 in words is "eight hundred eleven million, twenty-seven thousand, eighty".