98705993 has 2 divisors, whose sum is σ = 98705994. Its totient is φ = 98705992.

The previous prime is 98705989. The next prime is 98706019. The reversal of 98705993 is 39950789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89170249 + 9535744 = 9443^2 + 3088^2 .

It is a cyclic number.

It is not a de Polignac number, because 98705993 - 2² = 98705989 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 (98705933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49352996 + 49352997.

It is an arithmetic number, because the mean of its divisors is an integer number (49352997).

Almost surely, 2^98705993 is an apocalyptic number.

It is an amenable number.

98705993 is a deficient number, since it is larger than the sum of its proper divisors (1).

98705993 is an equidigital number, since it uses as much as digits as its factorization.

98705993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 98705993 is about 9935.0889779609. The cubic root of 98705993 is about 462.1481022280.

The spelling of 98705993 in words is "ninety-eight million, seven hundred five thousand, nine hundred ninety-three".