118678983 has 4 divisors (see below), whose sum is σ = 158238648. Its totient is φ = 79119320.

The previous prime is 118678927. The next prime is 118678999. The reversal of 118678983 is 389876811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 389876811 = 3 ⋅129958937.

It is a cyclic number.

It is not a de Polignac number, because 118678983 - 2⁸ = 118678727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118678283) 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, 19779828 + ... + 19779833.

It is an arithmetic number, because the mean of its divisors is an integer number (39559662).

Almost surely, 2^118678983 is an apocalyptic number.

118678983 is a deficient number, since it is larger than the sum of its proper divisors (39559665).

118678983 is an equidigital number, since it uses as much as digits as its factorization.

118678983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39559664.

The product of its digits is 580608, while the sum is 51.

The square root of 118678983 is about 10893.9883880974. The cubic root of 118678983 is about 491.4257834233.

The spelling of 118678983 in words is "one hundred eighteen million, six hundred seventy-eight thousand, nine hundred eighty-three".