100663844 has 12 divisors (see below), whose sum is σ = 176320368. Its totient is φ = 50286600.

The previous prime is 100663841. The next prime is 100663877. The reversal of 100663844 is 448366001.

It is a self number, because there is not a number n which added to its sum of digits gives 100663844.

It is not an unprimeable number, because it can be changed into a prime (100663841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6062 + ... + 15429.

It is an arithmetic number, because the mean of its divisors is an integer number (14693364).

Almost surely, 2^100663844 is an apocalyptic number.

It is an amenable number.

100663844 is a deficient number, since it is larger than the sum of its proper divisors (75656524).

100663844 is a wasteful number, since it uses less digits than its factorization.

100663844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22666 (or 22664 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 100663844 is about 10033.1372959808. The cubic root of 100663844 is about 465.1837158984.

The spelling of 100663844 in words is "one hundred million, six hundred sixty-three thousand, eight hundred forty-four".