116781906 has 16 divisors (see below), whose sum is σ = 234028800. Its totient is φ = 38849808.

The previous prime is 116781901. The next prime is 116781919. The reversal of 116781906 is 609187611.

It is not an unprimeable number, because it can be changed into a prime (116781901) 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 7 ways as a sum of consecutive naturals, for example, 16066 + ... + 22173.

It is an arithmetic number, because the mean of its divisors is an integer number (14626800).

Almost surely, 2^116781906 is an apocalyptic number.

116781906 is an abundant number, since it is smaller than the sum of its proper divisors (117246894).

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

116781906 is a wasteful number, since it uses less digits than its factorization.

116781906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38753.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 116781906 is about 10806.5677252308. The cubic root of 116781906 is about 488.7932347945.

The spelling of 116781906 in words is "one hundred sixteen million, seven hundred eighty-one thousand, nine hundred six".