98198761 has 2 divisors, whose sum is σ = 98198762. Its totient is φ = 98198760.

The previous prime is 98198743. The next prime is 98198801. The reversal of 98198761 is 16789189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51194025 + 47004736 = 7155^2 + 6856^2 .

It is an emirp because it is prime and its reverse (16789189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98198761 - 2⁵ = 98198729 is a prime.

It is not a weakly prime, because it can be changed into another prime (98198741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49099380 + 49099381.

It is an arithmetic number, because the mean of its divisors is an integer number (49099381).

Almost surely, 2^98198761 is an apocalyptic number.

It is an amenable number.

98198761 is a deficient number, since it is larger than the sum of its proper divisors (1).

98198761 is an equidigital number, since it uses as much as digits as its factorization.

98198761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 49.

The square root of 98198761 is about 9909.5287980812. The cubic root of 98198761 is about 461.3551108734.

The spelling of 98198761 in words is "ninety-eight million, one hundred ninety-eight thousand, seven hundred sixty-one".