99413819 has 2 divisors, whose sum is σ = 99413820. Its totient is φ = 99413818.

The previous prime is 99413803. The next prime is 99413887. The reversal of 99413819 is 91831499.

It is a weak prime.

It is an emirp because it is prime and its reverse (91831499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99413819 - 2⁴ = 99413803 is a prime.

It is a super-2 number, since 2×99413819² = 19766214816329522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99413819.

It is not a weakly prime, because it can be changed into another prime (99413519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49706909 + 49706910.

It is an arithmetic number, because the mean of its divisors is an integer number (49706910).

Almost surely, 2^99413819 is an apocalyptic number.

99413819 is a deficient number, since it is larger than the sum of its proper divisors (1).

99413819 is an equidigital number, since it uses as much as digits as its factorization.

99413819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 44.

The square root of 99413819 is about 9970.6478726309. The cubic root of 99413819 is about 463.2501684087.

The spelling of 99413819 in words is "ninety-nine million, four hundred thirteen thousand, eight hundred nineteen".