116987831 has 8 divisors (see below), whose sum is σ = 121219200. Its totient is φ = 112785120.

The previous prime is 116987809. The next prime is 116987833. The reversal of 116987831 is 138789611.

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 116987831 - 2¹⁴ = 116971447 is a prime.

It is a super-3 number, since 3×116987831³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116987833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1325 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (15152400).

Almost surely, 2^116987831 is an apocalyptic number.

116987831 is a deficient number, since it is larger than the sum of its proper divisors (4231369).

116987831 is a wasteful number, since it uses less digits than its factorization.

116987831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14329.

The product of its digits is 72576, while the sum is 44.

The square root of 116987831 is about 10816.0912995407. The cubic root of 116987831 is about 489.0803672956.

The spelling of 116987831 in words is "one hundred sixteen million, nine hundred eighty-seven thousand, eight hundred thirty-one".