98748421 has 2 divisors, whose sum is σ = 98748422. Its totient is φ = 98748420.

The previous prime is 98748389. The next prime is 98748439. The reversal of 98748421 is 12484789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93508900 + 5239521 = 9670^2 + 2289^2 .

It is an emirp because it is prime and its reverse (12484789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98748421 - 2⁵ = 98748389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90748421) 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, 49374210 + 49374211.

It is an arithmetic number, because the mean of its divisors is an integer number (49374211).

Almost surely, 2^98748421 is an apocalyptic number.

It is an amenable number.

98748421 is a deficient number, since it is larger than the sum of its proper divisors (1).

98748421 is an equidigital number, since it uses as much as digits as its factorization.

98748421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 43.

The square root of 98748421 is about 9937.2240087461. The cubic root of 98748421 is about 462.2143096598.

The spelling of 98748421 in words is "ninety-eight million, seven hundred forty-eight thousand, four hundred twenty-one".