9998462993 has 2 divisors, whose sum is σ = 9998462994. Its totient is φ = 9998462992.

The previous prime is 9998462951. The next prime is 9998463061. The reversal of 9998462993 is 3992648999.

It is an a-pointer prime, because the next prime (9998463061) can be obtained adding 9998462993 to its sum of digits (68).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9701659009 + 296803984 = 98497^2 + 17228^2 .

It is a cyclic number.

It is not a de Polignac number, because 9998462993 - 2⁸ = 9998462737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9998462693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999231496 + 4999231497.

It is an arithmetic number, because the mean of its divisors is an integer number (4999231497).

Almost surely, 2^9998462993 is an apocalyptic number.

It is an amenable number.

9998462993 is a deficient number, since it is larger than the sum of its proper divisors (1).

9998462993 is an equidigital number, since it uses as much as digits as its factorization.

9998462993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68024448, while the sum is 68.

The square root of 9998462993 is about 99992.3146696785. The cubic root of 9998462993 is about 2154.3243050030.

The spelling of 9998462993 in words is "nine billion, nine hundred ninety-eight million, four hundred sixty-two thousand, nine hundred ninety-three".