116236387 has 4 divisors (see below), whose sum is σ = 117072760. Its totient is φ = 115400016.

The previous prime is 116236381. The next prime is 116236399. The reversal of 116236387 is 783632611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116236387 - 2¹⁹ = 115712099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116236381) 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, 417978 + ... + 418255.

It is an arithmetic number, because the mean of its divisors is an integer number (29268190).

Almost surely, 2^116236387 is an apocalyptic number.

116236387 is a deficient number, since it is larger than the sum of its proper divisors (836373).

116236387 is an equidigital number, since it uses as much as digits as its factorization.

116236387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836372.

The product of its digits is 36288, while the sum is 37.

The square root of 116236387 is about 10781.2980201829. The cubic root of 116236387 is about 488.0309526972.

Adding to 116236387 its reverse (783632611), we get a palindrome (899868998).

The spelling of 116236387 in words is "one hundred sixteen million, two hundred thirty-six thousand, three hundred eighty-seven".