116909867 has 4 divisors (see below), whose sum is σ = 123786936. Its totient is φ = 110032800.

The previous prime is 116909861. The next prime is 116909879. The reversal of 116909867 is 768909611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768909611 = 4639 ⋅165749.

It is a cyclic number.

It is not a de Polignac number, because 116909867 - 2¹⁶ = 116844331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116909861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3438509 + ... + 3438542.

It is an arithmetic number, because the mean of its divisors is an integer number (30946734).

Almost surely, 2^116909867 is an apocalyptic number.

116909867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

116909867 is a deficient number, since it is larger than the sum of its proper divisors (6877069).

116909867 is an equidigital number, since it uses as much as digits as its factorization.

116909867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877068.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 116909867 is about 10812.4866242692. The cubic root of 116909867 is about 488.9716974878.

The spelling of 116909867 in words is "one hundred sixteen million, nine hundred nine thousand, eight hundred sixty-seven".