100442717 has 4 divisors (see below), whose sum is σ = 100816380. Its totient is φ = 100069056.

The previous prime is 100442707. The next prime is 100442729. The reversal of 100442717 is 717244001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11215801 + 89226916 = 3349^2 + 9446^2 .

It is a cyclic number.

It is not a de Polignac number, because 100442717 - 2⁶ = 100442653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100442707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186428 + ... + 186965.

It is an arithmetic number, because the mean of its divisors is an integer number (25204095).

Almost surely, 2^100442717 is an apocalyptic number.

It is an amenable number.

100442717 is a deficient number, since it is larger than the sum of its proper divisors (373663).

100442717 is an equidigital number, since it uses as much as digits as its factorization.

100442717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373662.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 100442717 is about 10022.1114042900. Note that the first 3 decimals coincide. The cubic root of 100442717 is about 464.8428451083.

Adding to 100442717 its reverse (717244001), we get a palindrome (817686718).

The spelling of 100442717 in words is "one hundred million, four hundred forty-two thousand, seven hundred seventeen".