100688884 has 6 divisors (see below), whose sum is σ = 176205554. Its totient is φ = 50344440.

The previous prime is 100688881. The next prime is 100688891. The reversal of 100688884 is 488886001.

It can be written as a sum of positive squares in only one way, i.e., 95062500 + 5626384 = 9750^2 + 2372^2 .

It is a super-2 number, since 2×100688884² = 20276502722330912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100688884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100688881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12586107 + ... + 12586114.

Almost surely, 2^100688884 is an apocalyptic number.

It is an amenable number.

100688884 is a deficient number, since it is larger than the sum of its proper divisors (75516670).

100688884 is a wasteful number, since it uses less digits than its factorization.

100688884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25172225 (or 25172223 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 43.

The square root of 100688884 is about 10034.3850833023. The cubic root of 100688884 is about 465.2222839817. Note that the first 4 decimals are identical.

The spelling of 100688884 in words is "one hundred million, six hundred eighty-eight thousand, eight hundred eighty-four".