99388013 has 2 divisors, whose sum is σ = 99388014. Its totient is φ = 99388012.

The previous prime is 99387989. The next prime is 99388019. The reversal of 99388013 is 31088399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96786244 + 2601769 = 9838^2 + 1613^2 .

It is a cyclic number.

It is not a de Polignac number, because 99388013 - 2¹² = 99383917 is a prime.

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, 49694006 + 49694007.

It is an arithmetic number, because the mean of its divisors is an integer number (49694007).

Almost surely, 2^99388013 is an apocalyptic number.

It is an amenable number.

99388013 is a deficient number, since it is larger than the sum of its proper divisors (1).

99388013 is an equidigital number, since it uses as much as digits as its factorization.

99388013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 99388013 is about 9969.3536901847. The cubic root of 99388013 is about 463.2100811971.

The spelling of 99388013 in words is "ninety-nine million, three hundred eighty-eight thousand, thirteen".