99980317 has 2 divisors, whose sum is σ = 99980318. Its totient is φ = 99980316.

The previous prime is 99980311. The next prime is 99980323. The reversal of 99980317 is 71308999.

It is a balanced prime because it is at equal distance from previous prime (99980311) and next prime (99980323).

It can be written as a sum of positive squares in only one way, i.e., 52838361 + 47141956 = 7269^2 + 6866^2 .

It is a cyclic number.

It is not a de Polignac number, because 99980317 - 2⁷ = 99980189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99980311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49990158 + 49990159.

It is an arithmetic number, because the mean of its divisors is an integer number (49990159).

Almost surely, 2^99980317 is an apocalyptic number.

It is an amenable number.

99980317 is a deficient number, since it is larger than the sum of its proper divisors (1).

99980317 is an equidigital number, since it uses as much as digits as its factorization.

99980317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 99980317 is about 9999.0158015677. The cubic root of 99980317 is about 464.1284278987.

The spelling of 99980317 in words is "ninety-nine million, nine hundred eighty thousand, three hundred seventeen".