117475728 has 80 divisors (see below), whose sum is σ = 310962240. Its totient is φ = 38207488.

The previous prime is 117475681. The next prime is 117475733. The reversal of 117475728 is 827574711.

It is a self number, because there is not a number n which added to its sum of digits gives 117475728.

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, 456976 + ... + 457232.

It is an arithmetic number, because the mean of its divisors is an integer number (3887028).

Almost surely, 2^117475728 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 117475728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155481120).

117475728 is an abundant number, since it is smaller than the sum of its proper divisors (193486512).

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

117475728 is a wasteful number, since it uses less digits than its factorization.

117475728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 458 counting only the distinct ones).

The product of its digits is 109760, while the sum is 42.

The square root of 117475728 is about 10838.6220526412. The cubic root of 117475728 is about 489.7593264835.

The spelling of 117475728 in words is "one hundred seventeen million, four hundred seventy-five thousand, seven hundred twenty-eight".