99388039 has 2 divisors, whose sum is σ = 99388040. Its totient is φ = 99388038.

The previous prime is 99388027. The next prime is 99388063. The reversal of 99388039 is 93088399.

It is a weak prime.

It is an emirp because it is prime and its reverse (93088399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99388039 - 2¹⁵ = 99355271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99387983 and 99388001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99388019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49694019 + 49694020.

It is an arithmetic number, because the mean of its divisors is an integer number (49694020).

Almost surely, 2^99388039 is an apocalyptic number.

99388039 is a deficient number, since it is larger than the sum of its proper divisors (1).

99388039 is an equidigital number, since it uses as much as digits as its factorization.

99388039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 99388039 is about 9969.3549941809. The cubic root of 99388039 is about 463.2101215892.

The spelling of 99388039 in words is "ninety-nine million, three hundred eighty-eight thousand, thirty-nine".