99061817 has 2 divisors, whose sum is σ = 99061818. Its totient is φ = 99061816.

The previous prime is 99061799. The next prime is 99061829. The reversal of 99061817 is 71816099.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85673536 + 13388281 = 9256^2 + 3659^2 .

It is an emirp because it is prime and its reverse (71816099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99061817 - 2¹⁴ = 99045433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99060817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49530908 + 49530909.

It is an arithmetic number, because the mean of its divisors is an integer number (49530909).

Almost surely, 2^99061817 is an apocalyptic number.

It is an amenable number.

99061817 is a deficient number, since it is larger than the sum of its proper divisors (1).

99061817 is an equidigital number, since it uses as much as digits as its factorization.

99061817 is an evil number, because the sum of its binary digits is even.

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

The square root of 99061817 is about 9952.9803074255. The cubic root of 99061817 is about 462.7027668981.

The spelling of 99061817 in words is "ninety-nine million, sixty-one thousand, eight hundred seventeen".