117688867 has 4 divisors (see below), whose sum is σ = 118028376. Its totient is φ = 117349360.

The previous prime is 117688859. The next prime is 117688877. The reversal of 117688867 is 768886711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768886711 = 23 ⋅33429857.

It is a cyclic number.

It is not a de Polignac number, because 117688867 - 2³ = 117688859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117688817) 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, 169234 + ... + 169927.

It is an arithmetic number, because the mean of its divisors is an integer number (29507094).

Almost surely, 2^117688867 is an apocalyptic number.

117688867 is a deficient number, since it is larger than the sum of its proper divisors (339509).

117688867 is an equidigital number, since it uses as much as digits as its factorization.

117688867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339508.

The product of its digits is 903168, while the sum is 52.

The square root of 117688867 is about 10848.4499814490. The cubic root of 117688867 is about 490.0553415212.

The spelling of 117688867 in words is "one hundred seventeen million, six hundred eighty-eight thousand, eight hundred sixty-seven".