117898894 has 4 divisors (see below), whose sum is σ = 176848344. Its totient is φ = 58949446.

The previous prime is 117898883. The next prime is 117898919. The reversal of 117898894 is 498898711.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29474722 + ... + 29474725.

It is an arithmetic number, because the mean of its divisors is an integer number (44212086).

Almost surely, 2^117898894 is an apocalyptic number.

117898894 is a deficient number, since it is larger than the sum of its proper divisors (58949450).

117898894 is an equidigital number, since it uses as much as digits as its factorization.

117898894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58949449.

The product of its digits is 1161216, while the sum is 55.

The square root of 117898894 is about 10858.1257130317. The cubic root of 117898894 is about 490.3466851009.

The spelling of 117898894 in words is "one hundred seventeen million, eight hundred ninety-eight thousand, eight hundred ninety-four".