117888506 has 8 divisors (see below), whose sum is σ = 187234740. Its totient is φ = 55476928.

The previous prime is 117888497. The next prime is 117888517. The reversal of 117888506 is 605888711.

It can be written as a sum of positive squares in 2 ways, for example, as 114297481 + 3591025 = 10691^2 + 1895^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1733621 + ... + 1733688.

Almost surely, 2^117888506 is an apocalyptic number.

117888506 is a deficient number, since it is larger than the sum of its proper divisors (69346234).

117888506 is a wasteful number, since it uses less digits than its factorization.

117888506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467328.

The product of its (nonzero) digits is 107520, while the sum is 44.

The square root of 117888506 is about 10857.6473510609. The cubic root of 117888506 is about 490.3322832950.

The spelling of 117888506 in words is "one hundred seventeen million, eight hundred eighty-eight thousand, five hundred six".