116987993 has 8 divisors (see below), whose sum is σ = 119853888. Its totient is φ = 114128784.

The previous prime is 116987989. The next prime is 116988007. The reversal of 116987993 is 399789611.

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 116987993 - 2² = 116987989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116987933) 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, 68255 + ... + 69947.

It is an arithmetic number, because the mean of its divisors is an integer number (14981736).

Almost surely, 2^116987993 is an apocalyptic number.

It is an amenable number.

116987993 is a deficient number, since it is larger than the sum of its proper divisors (2865895).

116987993 is a wasteful number, since it uses less digits than its factorization.

116987993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343.

The product of its digits is 734832, while the sum is 53.

The square root of 116987993 is about 10816.0987883802. The cubic root of 116987993 is about 489.0805930484.

It can be divided in two parts, 11698 and 7993, that added together give a palindrome (19691).

The spelling of 116987993 in words is "one hundred sixteen million, nine hundred eighty-seven thousand, nine hundred ninety-three".