116720217 has 16 divisors (see below), whose sum is σ = 173093760. Its totient is φ = 77734800.

The previous prime is 116720183. The next prime is 116720243. The reversal of 116720217 is 712027611.

It is not a de Polignac number, because 116720217 - 2¹² = 116716121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (116720117) 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 15 ways as a sum of consecutive naturals, for example, 39367 + ... + 42227.

It is an arithmetic number, because the mean of its divisors is an integer number (10818360).

Almost surely, 2^116720217 is an apocalyptic number.

It is an amenable number.

116720217 is a deficient number, since it is larger than the sum of its proper divisors (56373543).

116720217 is a wasteful number, since it uses less digits than its factorization.

116720217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381 (or 4375 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 116720217 is about 10803.7131117038. The cubic root of 116720217 is about 488.7071527468.

Adding to 116720217 its reverse (712027611), we get a palindrome (828747828).

The spelling of 116720217 in words is "one hundred sixteen million, seven hundred twenty thousand, two hundred seventeen".