99761173 has 2 divisors, whose sum is σ = 99761174. Its totient is φ = 99761172.

The previous prime is 99761149. The next prime is 99761183. The reversal of 99761173 is 37116799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82137969 + 17623204 = 9063^2 + 4198^2 .

It is a cyclic number.

It is not a de Polignac number, because 99761173 - 2¹³ = 99752981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99761113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49880586 + 49880587.

It is an arithmetic number, because the mean of its divisors is an integer number (49880587).

Almost surely, 2^99761173 is an apocalyptic number.

It is an amenable number.

99761173 is a deficient number, since it is larger than the sum of its proper divisors (1).

99761173 is an equidigital number, since it uses as much as digits as its factorization.

99761173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442, while the sum is 43.

The square root of 99761173 is about 9988.0515116813. The cubic root of 99761173 is about 463.7890765599.

The spelling of 99761173 in words is "ninety-nine million, seven hundred sixty-one thousand, one hundred seventy-three".