811459896 has 64 divisors (see below), whose sum is σ = 2202009600. Its totient is φ = 247701888.

The previous prime is 811459889. The next prime is 811459919. The reversal of 811459896 is 698954118.

811459896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29385 + ... + 49863.

It is an arithmetic number, because the mean of its divisors is an integer number (34406400).

Almost surely, 2^811459896 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 811459896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101004800).

811459896 is an abundant number, since it is smaller than the sum of its proper divisors (1390549704).

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

811459896 is a wasteful number, since it uses less digits than its factorization.

811459896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20628 (or 20624 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The square root of 811459896 is about 28486.1351537902. The cubic root of 811459896 is about 932.7294448418.

The spelling of 811459896 in words is "eight hundred eleven million, four hundred fifty-nine thousand, eight hundred ninety-six".