817113408 has 56 divisors (see below), whose sum is σ = 2175796512. Its totient is φ = 270626304.

The previous prime is 817113403. The next prime is 817113421. The reversal of 817113408 is 804311718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (817113403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16591 + ... + 43697.

Almost surely, 2^817113408 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 817113408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087898256).

817113408 is an abundant number, since it is smaller than the sum of its proper divisors (1358683104).

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

817113408 is a wasteful number, since it uses less digits than its factorization.

817113408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27279 (or 27269 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 817113408 is about 28585.1956089162. The cubic root of 817113408 is about 934.8905695183.

The spelling of 817113408 in words is "eight hundred seventeen million, one hundred thirteen thousand, four hundred eight".