116289993 has 4 divisors (see below), whose sum is σ = 155053328. Its totient is φ = 77526660.

The previous prime is 116289967. The next prime is 116290033. The reversal of 116289993 is 399982611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 116289993 - 2⁸ = 116289737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (116289923) 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, 19381663 + ... + 19381668.

It is an arithmetic number, because the mean of its divisors is an integer number (38763332).

Almost surely, 2^116289993 is an apocalyptic number.

It is an amenable number.

116289993 is a deficient number, since it is larger than the sum of its proper divisors (38763335).

116289993 is an equidigital number, since it uses as much as digits as its factorization.

116289993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38763334.

The product of its digits is 209952, while the sum is 48.

The square root of 116289993 is about 10783.7837979069. The cubic root of 116289993 is about 488.1059646828.

The spelling of 116289993 in words is "one hundred sixteen million, two hundred eighty-nine thousand, nine hundred ninety-three".