811877484 has 48 divisors (see below), whose sum is σ = 2072843136. Its totient is φ = 245280000.

The previous prime is 811877477. The next prime is 811877513. The reversal of 811877484 is 484778118.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35359 + ... + 53609.

It is an arithmetic number, because the mean of its divisors is an integer number (43184232).

Almost surely, 2^811877484 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 811877484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1036421568).

811877484 is an abundant number, since it is smaller than the sum of its proper divisors (1260965652).

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

811877484 is a wasteful number, since it uses less digits than its factorization.

811877484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18606 (or 18604 counting only the distinct ones).

The product of its digits is 401408, while the sum is 48.

The square root of 811877484 is about 28493.4638820906. The cubic root of 811877484 is about 932.8894157088.

The spelling of 811877484 in words is "eight hundred eleven million, eight hundred seventy-seven thousand, four hundred eighty-four".