117898487 has 8 divisors (see below), whose sum is σ = 139087872. Its totient is φ = 97795800.

The previous prime is 117898471. The next prime is 117898499. The reversal of 117898487 is 784898711.

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 117898487 - 2⁴ = 117898471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117898087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271439 + ... + 271872.

It is an arithmetic number, because the mean of its divisors is an integer number (17385984).

Almost surely, 2^117898487 is an apocalyptic number.

117898487 is a deficient number, since it is larger than the sum of its proper divisors (21189385).

117898487 is an equidigital number, since it uses as much as digits as its factorization.

117898487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543349.

The product of its digits is 903168, while the sum is 53.

The square root of 117898487 is about 10858.1069712911. The cubic root of 117898487 is about 490.3461208567.

The spelling of 117898487 in words is "one hundred seventeen million, eight hundred ninety-eight thousand, four hundred eighty-seven".