999368093 has 2 divisors, whose sum is σ = 999368094. Its totient is φ = 999368092.

The previous prime is 999368081. The next prime is 999368107. The reversal of 999368093 is 390863999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 902581849 + 96786244 = 30043^2 + 9838^2 .

It is an emirp because it is prime and its reverse (390863999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999368093 - 2¹² = 999363997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999368693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499684046 + 499684047.

It is an arithmetic number, because the mean of its divisors is an integer number (499684047).

Almost surely, 2^999368093 is an apocalyptic number.

It is an amenable number.

999368093 is a deficient number, since it is larger than the sum of its proper divisors (1).

999368093 is an equidigital number, since it uses as much as digits as its factorization.

999368093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2834352, while the sum is 56.

The square root of 999368093 is about 31612.7836958405. The cubic root of 999368093 is about 999.7893199504.

The spelling of 999368093 in words is "nine hundred ninety-nine million, three hundred sixty-eight thousand, ninety-three".