899717101 has 2 divisors, whose sum is σ = 899717102. Its totient is φ = 899717100.

The previous prime is 899717081. The next prime is 899717177. The reversal of 899717101 is 101717998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 791015625 + 108701476 = 28125^2 + 10426^2 .

It is a cyclic number.

It is not a de Polignac number, because 899717101 - 2⁵ = 899717069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (899717201) 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 as a sum of consecutive naturals, namely, 449858550 + 449858551.

It is an arithmetic number, because the mean of its divisors is an integer number (449858551).

Almost surely, 2^899717101 is an apocalyptic number.

It is an amenable number.

899717101 is a deficient number, since it is larger than the sum of its proper divisors (1).

899717101 is an equidigital number, since it uses as much as digits as its factorization.

899717101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 43.

The square root of 899717101 is about 29995.2846460906. The cubic root of 899717101 is about 965.3882125297.

The spelling of 899717101 in words is "eight hundred ninety-nine million, seven hundred seventeen thousand, one hundred one".