100000997 has 4 divisors (see below), whose sum is σ = 100052736. Its totient is φ = 99949260.

The previous prime is 100000969. The next prime is 100001029. The reversal of 100000997 is 799000001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100000997 - 2²⁰ = 98952421 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 (100000937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22853 + ... + 26874.

It is an arithmetic number, because the mean of its divisors is an integer number (25013184).

Almost surely, 2^100000997 is an apocalyptic number.

It is an amenable number.

100000997 is a deficient number, since it is larger than the sum of its proper divisors (51739).

100000997 is an equidigital number, since it uses as much as digits as its factorization.

100000997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51738.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 100000997 is about 10000.0498498757. The cubic root of 100000997 is about 464.1604259108.

Adding to 100000997 its reverse (799000001), we get a palindrome (899000998).

The spelling of 100000997 in words is "one hundred million, nine hundred ninety-seven", and thus it is an aban number.