100866893 has 2 divisors, whose sum is σ = 100866894. Its totient is φ = 100866892.

The previous prime is 100866881. The next prime is 100866911. The reversal of 100866893 is 398668001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100440484 + 426409 = 10022^2 + 653^2 .

It is a cyclic number.

It is not a de Polignac number, because 100866893 - 2¹⁴ = 100850509 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100866893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100866833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50433446 + 50433447.

It is an arithmetic number, because the mean of its divisors is an integer number (50433447).

Almost surely, 2^100866893 is an apocalyptic number.

It is an amenable number.

100866893 is a deficient number, since it is larger than the sum of its proper divisors (1).

100866893 is an equidigital number, since it uses as much as digits as its factorization.

100866893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 100866893 is about 10043.2511170437. The cubic root of 100866893 is about 465.4962797983.

The spelling of 100866893 in words is "one hundred million, eight hundred sixty-six thousand, eight hundred ninety-three".