99993169 has 2 divisors, whose sum is σ = 99993170. Its totient is φ = 99993168.

The previous prime is 99993163. The next prime is 99993193. The reversal of 99993169 is 96139999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96432400 + 3560769 = 9820^2 + 1887^2 .

It is an emirp because it is prime and its reverse (96139999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99993169 - 2³ = 99993161 is a prime.

It is a super-2 number, since 2×99993169² = 19997267693325122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99993161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49996584 + 49996585.

It is an arithmetic number, because the mean of its divisors is an integer number (49996585).

Almost surely, 2^99993169 is an apocalyptic number.

It is an amenable number.

99993169 is a deficient number, since it is larger than the sum of its proper divisors (1).

99993169 is an equidigital number, since it uses as much as digits as its factorization.

99993169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1062882, while the sum is 55.

The square root of 99993169 is about 9999.6584441670. The cubic root of 99993169 is about 464.1483142228.

It can be divided in two parts, 999931 and 69, that added together give a 6-th power (1000000 = 10⁶).

The spelling of 99993169 in words is "ninety-nine million, nine hundred ninety-three thousand, one hundred sixty-nine".