99830173 has 2 divisors, whose sum is σ = 99830174. Its totient is φ = 99830172.

The previous prime is 99830147. The next prime is 99830197. The reversal of 99830173 is 37103899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98942809 + 887364 = 9947^2 + 942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99830173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99830573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49915086 + 49915087.

It is an arithmetic number, because the mean of its divisors is an integer number (49915087).

Almost surely, 2^99830173 is an apocalyptic number.

It is an amenable number.

99830173 is a deficient number, since it is larger than the sum of its proper divisors (1).

99830173 is an equidigital number, since it uses as much as digits as its factorization.

99830173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 99830173 is about 9991.5050417842. The cubic root of 99830173 is about 463.8959787751.

The spelling of 99830173 in words is "ninety-nine million, eight hundred thirty thousand, one hundred seventy-three".