100897717 has 2 divisors, whose sum is σ = 100897718. Its totient is φ = 100897716.

The previous prime is 100897691. The next prime is 100897739. The reversal of 100897717 is 717798001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52330756 + 48566961 = 7234^2 + 6969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100897717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100897717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100897217) 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 as a sum of consecutive naturals, namely, 50448858 + 50448859.

It is an arithmetic number, because the mean of its divisors is an integer number (50448859).

Almost surely, 2^100897717 is an apocalyptic number.

It is an amenable number.

100897717 is a deficient number, since it is larger than the sum of its proper divisors (1).

100897717 is an equidigital number, since it uses as much as digits as its factorization.

100897717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 40.

The square root of 100897717 is about 10044.7855626688. The cubic root of 100897717 is about 465.5436921043.

The spelling of 100897717 in words is "one hundred million, eight hundred ninety-seven thousand, seven hundred seventeen".