106991912 has 64 divisors (see below), whose sum is σ = 216268800. Its totient is φ = 49533120.

The previous prime is 106991909. The next prime is 106991917. The reversal of 106991912 is 219199601.

It is a super-2 number, since 2×106991912² = 22894538466831488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106991917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842393 + ... + 842519.

It is an arithmetic number, because the mean of its divisors is an integer number (3379200).

Almost surely, 2^106991912 is an apocalyptic number.

It is an amenable number.

106991912 is an abundant number, since it is smaller than the sum of its proper divisors (109276888).

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

106991912 is a wasteful number, since it uses less digits than its factorization.

106991912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 38.

The square root of 106991912 is about 10343.6894771643. The cubic root of 106991912 is about 474.7339777280.

The spelling of 106991912 in words is "one hundred six million, nine hundred ninety-one thousand, nine hundred twelve".