98734021 has 2 divisors, whose sum is σ = 98734022. Its totient is φ = 98734020.

The previous prime is 98734001. The next prime is 98734043. The reversal of 98734021 is 12043789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65383396 + 33350625 = 8086^2 + 5775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98734021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98734001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49367010 + 49367011.

It is an arithmetic number, because the mean of its divisors is an integer number (49367011).

Almost surely, 2^98734021 is an apocalyptic number.

It is an amenable number.

98734021 is a deficient number, since it is larger than the sum of its proper divisors (1).

98734021 is an equidigital number, since it uses as much as digits as its factorization.

98734021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 98734021 is about 9936.4994339053. The cubic root of 98734021 is about 462.1918410824.

The spelling of 98734021 in words is "ninety-eight million, seven hundred thirty-four thousand, twenty-one".