117890215 has 8 divisors (see below), whose sum is σ = 141864480. Its totient is φ = 94048032.

The previous prime is 117890197. The next prime is 117890237. The reversal of 117890215 is 512098711.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 117890215 - 2⁵ = 117890183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31044 + ... + 34633.

It is an arithmetic number, because the mean of its divisors is an integer number (17733060).

Almost surely, 2^117890215 is an apocalyptic number.

117890215 is a deficient number, since it is larger than the sum of its proper divisors (23974265).

117890215 is an equidigital number, since it uses as much as digits as its factorization.

117890215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66041.

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 117890215 is about 10857.7260510661. The cubic root of 117890215 is about 490.3346526915.

The spelling of 117890215 in words is "one hundred seventeen million, eight hundred ninety thousand, two hundred fifteen".