117591408 has 120 divisors (see below), whose sum is σ = 365195376. Its totient is φ = 35020800.

The previous prime is 117591389. The next prime is 117591443. The reversal of 117591408 is 804195711.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 96016 + ... + 97232.

Almost surely, 2^117591408 is an apocalyptic number.

117591408 is a gapful number since it is divisible by the number (18) 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 117591408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182597688).

117591408 is an abundant number, since it is smaller than the sum of its proper divisors (247603968).

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

117591408 is a wasteful number, since it uses less digits than its factorization.

117591408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 117591408 is about 10843.9572112767. The cubic root of 117591408 is about 489.9200313757.

The spelling of 117591408 in words is "one hundred seventeen million, five hundred ninety-one thousand, four hundred eight".