116891719 has 4 divisors (see below), whose sum is σ = 133590544. Its totient is φ = 100192896.

The previous prime is 116891717. The next prime is 116891741. The reversal of 116891719 is 917198611.

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 116891719 - 2¹ = 116891717 is a prime.

It is a super-2 number, since 2×116891719² = 27327347941549922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116891717) 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, 8349402 + ... + 8349415.

It is an arithmetic number, because the mean of its divisors is an integer number (33397636).

Almost surely, 2^116891719 is an apocalyptic number.

116891719 is a deficient number, since it is larger than the sum of its proper divisors (16698825).

116891719 is an equidigital number, since it uses as much as digits as its factorization.

116891719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16698824.

The product of its digits is 27216, while the sum is 43.

The square root of 116891719 is about 10811.6473767877. The cubic root of 116891719 is about 488.9463950395.

The spelling of 116891719 in words is "one hundred sixteen million, eight hundred ninety-one thousand, seven hundred nineteen".