1993456099 has 2 divisors, whose sum is σ = 1993456100. Its totient is φ = 1993456098.

The previous prime is 1993456081. The next prime is 1993456111. The reversal of 1993456099 is 9906543991.

It is a strong prime.

It is an emirp because it is prime and its reverse (9906543991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1993456099 - 2²⁹ = 1456585187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1993456009) 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, 996728049 + 996728050.

It is an arithmetic number, because the mean of its divisors is an integer number (996728050).

Almost surely, 2^1993456099 is an apocalyptic number.

1993456099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1993456099 is an equidigital number, since it uses as much as digits as its factorization.

1993456099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2361960, while the sum is 55.

The square root of 1993456099 is about 44648.1365680585. The cubic root of 1993456099 is about 1258.5454153631.

The spelling of 1993456099 in words is "one billion, nine hundred ninety-three million, four hundred fifty-six thousand, ninety-nine".