9930321799 has 2 divisors, whose sum is σ = 9930321800. Its totient is φ = 9930321798.

The previous prime is 9930321787. The next prime is 9930321827. The reversal of 9930321799 is 9971230399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9930321799 - 2⁵ = 9930321767 is a prime.

It is a super-2 number, since 2×9930321799² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9930321769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4965160899 + 4965160900.

It is an arithmetic number, because the mean of its divisors is an integer number (4965160900).

Almost surely, 2^9930321799 is an apocalyptic number.

9930321799 is a deficient number, since it is larger than the sum of its proper divisors (1).

9930321799 is an equidigital number, since it uses as much as digits as its factorization.

9930321799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 826686, while the sum is 52.

The square root of 9930321799 is about 99650.9999899650. Note that the first 4 decimals coincide. The cubic root of 9930321799 is about 2149.4191182848.

The spelling of 9930321799 in words is "nine billion, nine hundred thirty million, three hundred twenty-one thousand, seven hundred ninety-nine".