100680089 has 2 divisors, whose sum is σ = 100680090. Its totient is φ = 100680088.

The previous prime is 100680061. The next prime is 100680101. The reversal of 100680089 is 980086001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72505225 + 28174864 = 8515^2 + 5308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100680089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100680389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50340044 + 50340045.

It is an arithmetic number, because the mean of its divisors is an integer number (50340045).

Almost surely, 2^100680089 is an apocalyptic number.

It is an amenable number.

100680089 is a deficient number, since it is larger than the sum of its proper divisors (1).

100680089 is an equidigital number, since it uses as much as digits as its factorization.

100680089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 100680089 is about 10033.9468306345. The cubic root of 100680089 is about 465.2087381331.

The spelling of 100680089 in words is "one hundred million, six hundred eighty thousand, eighty-nine".