117008728 has 16 divisors (see below), whose sum is σ = 228930480. Its totient is φ = 55960608.

The previous prime is 117008699. The next prime is 117008729. The reversal of 117008728 is 827800711.

It is a super-3 number, since 3×117008728³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 117008693 and 117008702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117008729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317775 + ... + 318142.

It is an arithmetic number, because the mean of its divisors is an integer number (14308155).

Almost surely, 2^117008728 is an apocalyptic number.

It is an amenable number.

117008728 is a deficient number, since it is larger than the sum of its proper divisors (111921752).

117008728 is a wasteful number, since it uses less digits than its factorization.

117008728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635946 (or 635942 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 117008728 is about 10817.0572708108. The cubic root of 117008728 is about 489.1094862899.

The spelling of 117008728 in words is "one hundred seventeen million, eight thousand, seven hundred twenty-eight".