116558993 has 4 divisors (see below), whose sum is σ = 116594868. Its totient is φ = 116523120.

The previous prime is 116558969. The next prime is 116558999. The reversal of 116558993 is 399855611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399855611 = 1831 ⋅218381.

It can be written as a sum of positive squares in 2 ways, for example, as 3179089 + 113379904 = 1783^2 + 10648^2 .

It is a cyclic number.

It is not a de Polignac number, because 116558993 - 2⁸ = 116558737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116558999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12518 + ... + 19743.

It is an arithmetic number, because the mean of its divisors is an integer number (29148717).

Almost surely, 2^116558993 is an apocalyptic number.

It is an amenable number.

116558993 is a deficient number, since it is larger than the sum of its proper divisors (35875).

116558993 is an equidigital number, since it uses as much as digits as its factorization.

116558993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35874.

The product of its digits is 291600, while the sum is 47.

The square root of 116558993 is about 10796.2490245455. The cubic root of 116558993 is about 488.4820342836.

The spelling of 116558993 in words is "one hundred sixteen million, five hundred fifty-eight thousand, nine hundred ninety-three".