117765867 has 4 divisors (see below), whose sum is σ = 157021160. Its totient is φ = 78510576.

The previous prime is 117765847. The next prime is 117765883. The reversal of 117765867 is 768567711.

It is a happy number.

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

It is not a de Polignac number, because 117765867 - 2²⁶ = 50657003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117765827) 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, 19627642 + ... + 19627647.

It is an arithmetic number, because the mean of its divisors is an integer number (39255290).

Almost surely, 2^117765867 is an apocalyptic number.

117765867 is a deficient number, since it is larger than the sum of its proper divisors (39255293).

117765867 is an equidigital number, since it uses as much as digits as its factorization.

117765867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39255292.

The product of its digits is 493920, while the sum is 48.

The square root of 117765867 is about 10851.9982952450. The cubic root of 117765867 is about 490.1621939811.

The spelling of 117765867 in words is "one hundred seventeen million, seven hundred sixty-five thousand, eight hundred sixty-seven".