116897993 has 4 divisors (see below), whose sum is σ = 120668928. Its totient is φ = 113127060.

The previous prime is 116897987. The next prime is 116897999. The reversal of 116897993 is 399798611.

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 an interprime number because it is at equal distance from previous prime (116897987) and next prime (116897999).

It is not a de Polignac number, because 116897993 - 2²⁴ = 100120777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116897999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1885421 + ... + 1885482.

It is an arithmetic number, because the mean of its divisors is an integer number (30167232).

Almost surely, 2^116897993 is an apocalyptic number.

It is an amenable number.

116897993 is a deficient number, since it is larger than the sum of its proper divisors (3770935).

116897993 is an equidigital number, since it uses as much as digits as its factorization.

116897993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770934.

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

The square root of 116897993 is about 10811.9375229419. The cubic root of 116897993 is about 488.9551427216.

The spelling of 116897993 in words is "one hundred sixteen million, eight hundred ninety-seven thousand, nine hundred ninety-three".