117669888 has 256 divisors, whose sum is σ = 419424000. Its totient is φ = 31850496.

The previous prime is 117669883. The next prime is 117669899. The reversal of 117669888 is 888966711.

It is a tau number, because it is divible by the number of its divisors (256).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117669883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6193143 + ... + 6193161.

It is an arithmetic number, because the mean of its divisors is an integer number (1638375).

Almost surely, 2^117669888 is an apocalyptic number.

117669888 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 117669888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209712000).

117669888 is an abundant number, since it is smaller than the sum of its proper divisors (301754112).

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

117669888 is an frugal number, since it uses more digits than its factorization.

117669888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 31 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 117669888 is about 10847.5752129220. The cubic root of 117669888 is about 490.0289973121.

The spelling of 117669888 in words is "one hundred seventeen million, six hundred sixty-nine thousand, eight hundred eighty-eight".