117042887 has 8 divisors (see below), whose sum is σ = 130112640. Its totient is φ = 104554080.

The previous prime is 117042881. The next prime is 117042889. The reversal of 117042887 is 788240711.

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 117042887 - 2²⁰ = 115994311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117042887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117042881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144812 + ... + 145617.

It is an arithmetic number, because the mean of its divisors is an integer number (16264080).

Almost surely, 2^117042887 is an apocalyptic number.

117042887 is a deficient number, since it is larger than the sum of its proper divisors (13069753).

117042887 is a wasteful number, since it uses less digits than its factorization.

117042887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290473.

The product of its (nonzero) digits is 25088, while the sum is 38.

The square root of 117042887 is about 10818.6360970318. The cubic root of 117042887 is about 489.1570777977.

The spelling of 117042887 in words is "one hundred seventeen million, forty-two thousand, eight hundred eighty-seven".