116209389 has 8 divisors (see below), whose sum is σ = 155263392. Its totient is φ = 77314160.

The previous prime is 116209361. The next prime is 116209403. The reversal of 116209389 is 983902611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116209389 - 2¹² = 116205293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116209309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37974 + ... + 40919.

It is an arithmetic number, because the mean of its divisors is an integer number (19407924).

Almost surely, 2^116209389 is an apocalyptic number.

It is an amenable number.

116209389 is a deficient number, since it is larger than the sum of its proper divisors (39054003).

116209389 is an equidigital number, since it uses as much as digits as its factorization.

116209389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79387.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 116209389 is about 10780.0458718876. The cubic root of 116209389 is about 487.9931651040.

The spelling of 116209389 in words is "one hundred sixteen million, two hundred nine thousand, three hundred eighty-nine".