116895809 has 4 divisors (see below), whose sum is σ = 123048240. Its totient is φ = 110743380.

The previous prime is 116895799. The next prime is 116895827. The reversal of 116895809 is 908598611.

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, and also an emirpimes, since its reverse is a distinct semiprime: 908598611 = 571 ⋅1591241.

It is a cyclic number.

It is not a de Polignac number, because 116895809 - 2²⁰ = 115847233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116895829) 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, 3076187 + ... + 3076224.

It is an arithmetic number, because the mean of its divisors is an integer number (30762060).

Almost surely, 2^116895809 is an apocalyptic number.

116895809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

116895809 is a deficient number, since it is larger than the sum of its proper divisors (6152431).

116895809 is an equidigital number, since it uses as much as digits as its factorization.

116895809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152430.

The product of its (nonzero) digits is 155520, while the sum is 47.

The square root of 116895809 is about 10811.8365229965. The cubic root of 116895809 is about 488.9520976603.

The spelling of 116895809 in words is "one hundred sixteen million, eight hundred ninety-five thousand, eight hundred nine".