98543993 has 2 divisors, whose sum is σ = 98543994. Its totient is φ = 98543992.

The previous prime is 98543971. The next prime is 98544031. The reversal of 98543993 is 39934589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95491984 + 3052009 = 9772^2 + 1747^2 .

It is a cyclic number.

It is not a de Polignac number, because 98543993 - 2²⁴ = 81766777 is a prime.

It is not a weakly prime, because it can be changed into another prime (98543903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49271996 + 49271997.

It is an arithmetic number, because the mean of its divisors is an integer number (49271997).

Almost surely, 2^98543993 is an apocalyptic number.

It is an amenable number.

98543993 is a deficient number, since it is larger than the sum of its proper divisors (1).

98543993 is an equidigital number, since it uses as much as digits as its factorization.

98543993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 50.

The square root of 98543993 is about 9926.9327085460. The cubic root of 98543993 is about 461.8951321485.

The spelling of 98543993 in words is "ninety-eight million, five hundred forty-three thousand, nine hundred ninety-three".