116420217 has 4 divisors (see below), whose sum is σ = 155226960. Its totient is φ = 77613476.

The previous prime is 116420207. The next prime is 116420219. The reversal of 116420217 is 712024611.

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 a cyclic number.

It is not a de Polignac number, because 116420217 - 2⁶ = 116420153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116420219) 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, 19403367 + ... + 19403372.

It is an arithmetic number, because the mean of its divisors is an integer number (38806740).

Almost surely, 2^116420217 is an apocalyptic number.

It is an amenable number.

116420217 is a deficient number, since it is larger than the sum of its proper divisors (38806743).

116420217 is an equidigital number, since it uses as much as digits as its factorization.

116420217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38806742.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 116420217 is about 10789.8200633746. The cubic root of 116420217 is about 488.2880938521.

Adding to 116420217 its reverse (712024611), we get a palindrome (828444828).

The spelling of 116420217 in words is "one hundred sixteen million, four hundred twenty thousand, two hundred seventeen".