118399967 has 4 divisors (see below), whose sum is σ = 135314256. Its totient is φ = 101485680.

The previous prime is 118399949. The next prime is 118399991. The reversal of 118399967 is 769993811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769993811 = 1741 ⋅442271.

It is a cyclic number.

It is not a de Polignac number, because 118399967 - 2⁸ = 118399711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118399997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8457134 + ... + 8457147.

It is an arithmetic number, because the mean of its divisors is an integer number (33828564).

Almost surely, 2^118399967 is an apocalyptic number.

118399967 is a deficient number, since it is larger than the sum of its proper divisors (16914289).

118399967 is an equidigital number, since it uses as much as digits as its factorization.

118399967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16914288.

The product of its digits is 734832, while the sum is 53.

The square root of 118399967 is about 10881.1748906081. The cubic root of 118399967 is about 491.0403648565.

The spelling of 118399967 in words is "one hundred eighteen million, three hundred ninety-nine thousand, nine hundred sixty-seven".