117783456 has 144 divisors (see below), whose sum is σ = 365649984. Its totient is φ = 33191424.

The previous prime is 117783431. The next prime is 117783467. The reversal of 117783456 is 654387711.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1613436 + ... + 1613508.

It is an arithmetic number, because the mean of its divisors is an integer number (2539236).

Almost surely, 2^117783456 is an apocalyptic number.

117783456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117783456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182824992).

117783456 is an abundant number, since it is smaller than the sum of its proper divisors (247866528).

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

117783456 is an frugal number, since it uses more digits than its factorization.

117783456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 85 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 117783456 is about 10852.8086687272. The cubic root of 117783456 is about 490.1865956007.

The spelling of 117783456 in words is "one hundred seventeen million, seven hundred eighty-three thousand, four hundred fifty-six".