117272887 has 4 divisors (see below), whose sum is σ = 117308880. Its totient is φ = 117236896.

The previous prime is 117272867. The next prime is 117272899. The reversal of 117272887 is 788272711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788272711 = 17 ⋅46368983.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117272887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117272867) 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, 12562 + ... + 19807.

It is an arithmetic number, because the mean of its divisors is an integer number (29327220).

Almost surely, 2^117272887 is an apocalyptic number.

117272887 is a deficient number, since it is larger than the sum of its proper divisors (35993).

117272887 is an equidigital number, since it uses as much as digits as its factorization.

117272887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35992.

The product of its digits is 87808, while the sum is 43.

The square root of 117272887 is about 10829.2606857532. The cubic root of 117272887 is about 489.4772809761.

The spelling of 117272887 in words is "one hundred seventeen million, two hundred seventy-two thousand, eight hundred eighty-seven".