100688603 has 4 divisors (see below), whose sum is σ = 106611480. Its totient is φ = 94765728.

The previous prime is 100688591. The next prime is 100688611. The reversal of 100688603 is 306886001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100688603 - 2⁴ = 100688587 is a prime.

It is a super-4 number, since 4×100688603⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100688603.

It is not an unprimeable number, because it can be changed into a prime (100688663) 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 in 3 ways as a sum of consecutive naturals, for example, 2961413 + ... + 2961446.

It is an arithmetic number, because the mean of its divisors is an integer number (26652870).

Almost surely, 2^100688603 is an apocalyptic number.

100688603 is a deficient number, since it is larger than the sum of its proper divisors (5922877).

100688603 is an equidigital number, since it uses as much as digits as its factorization.

100688603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922876.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 100688603 is about 10034.3710814380. The cubic root of 100688603 is about 465.2218512044.

The spelling of 100688603 in words is "one hundred million, six hundred eighty-eight thousand, six hundred three".