116247691 has 4 divisors (see below), whose sum is σ = 132854512. Its totient is φ = 99640872.

The previous prime is 116247679. The next prime is 116247731. The reversal of 116247691 is 196742611.

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 116247691 - 2²³ = 107859083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116247691.

It is not an unprimeable number, because it can be changed into a prime (116247601) 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, 8303400 + ... + 8303413.

It is an arithmetic number, because the mean of its divisors is an integer number (33213628).

Almost surely, 2^116247691 is an apocalyptic number.

116247691 is a deficient number, since it is larger than the sum of its proper divisors (16606821).

116247691 is an equidigital number, since it uses as much as digits as its factorization.

116247691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16606820.

The product of its digits is 18144, while the sum is 37.

The square root of 116247691 is about 10781.8222485812. The cubic root of 116247691 is about 488.0467725370.

The spelling of 116247691 in words is "one hundred sixteen million, two hundred forty-seven thousand, six hundred ninety-one".