99544219 has 2 divisors, whose sum is σ = 99544220. Its totient is φ = 99544218.

The previous prime is 99544169. The next prime is 99544243. The reversal of 99544219 is 91244599.

It is a strong prime.

It is an emirp because it is prime and its reverse (91244599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99544219 - 2⁹ = 99543707 is a prime.

It is a super-2 number, since 2×99544219² = 19818103072639922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99544259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49772109 + 49772110.

It is an arithmetic number, because the mean of its divisors is an integer number (49772110).

Almost surely, 2^99544219 is an apocalyptic number.

99544219 is a deficient number, since it is larger than the sum of its proper divisors (1).

99544219 is an equidigital number, since it uses as much as digits as its factorization.

99544219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 99544219 is about 9977.1849236145. The cubic root of 99544219 is about 463.4526266106.

The spelling of 99544219 in words is "ninety-nine million, five hundred forty-four thousand, two hundred nineteen".