105998684 has 12 divisors (see below), whose sum is σ = 202361208. Its totient is φ = 48181200.

The previous prime is 105998647. The next prime is 105998687. The reversal of 105998684 is 486899501.

It is a happy number.

It is a super-2 number, since 2×105998684² = 22471442019463712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105998687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204487 + ... + 1204574.

It is an arithmetic number, because the mean of its divisors is an integer number (16863434).

Almost surely, 2^105998684 is an apocalyptic number.

It is an amenable number.

105998684 is a deficient number, since it is larger than the sum of its proper divisors (96362524).

105998684 is a wasteful number, since it uses less digits than its factorization.

105998684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409076 (or 2409074 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 105998684 is about 10295.5662301789. The cubic root of 105998684 is about 473.2603905760.

The spelling of 105998684 in words is "one hundred five million, nine hundred ninety-eight thousand, six hundred eighty-four".