116839638 has 32 divisors (see below), whose sum is σ = 259996800. Its totient is φ = 38893608.

The previous prime is 116839631. The next prime is 116839649. The reversal of 116839638 is 836938611.

It is a happy number.

116839638 is a `hidden beast` number, since 1 + 1 + 6 + 8 + 3 + 9 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 116839593 and 116839602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116839631) 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 15 ways as a sum of consecutive naturals, for example, 78045 + ... + 79527.

It is an arithmetic number, because the mean of its divisors is an integer number (8124900).

Almost surely, 2^116839638 is an apocalyptic number.

116839638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

116839638 is an abundant number, since it is smaller than the sum of its proper divisors (143157162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116839638 is a wasteful number, since it uses less digits than its factorization.

116839638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953 (or 2947 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 116839638 is about 10809.2385485750. The cubic root of 116839638 is about 488.8737677103.

It can be divided in two parts, 11683 and 9638, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 116839638 in words is "one hundred sixteen million, eight hundred thirty-nine thousand, six hundred thirty-eight".