100897691 has 2 divisors, whose sum is σ = 100897692. Its totient is φ = 100897690.

The previous prime is 100897663. The next prime is 100897717. The reversal of 100897691 is 196798001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100897691 - 2⁶ = 100897627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100897661) 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, 50448845 + 50448846.

It is an arithmetic number, because the mean of its divisors is an integer number (50448846).

Almost surely, 2^100897691 is an apocalyptic number.

100897691 is a deficient number, since it is larger than the sum of its proper divisors (1).

100897691 is an equidigital number, since it uses as much as digits as its factorization.

100897691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 100897691 is about 10044.7842684649. The cubic root of 100897691 is about 465.5436521161.

The spelling of 100897691 in words is "one hundred million, eight hundred ninety-seven thousand, six hundred ninety-one".