98128907 has 2 divisors, whose sum is σ = 98128908. Its totient is φ = 98128906.

The previous prime is 98128889. The next prime is 98128957. The reversal of 98128907 is 70982189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98128907 - 2⁶ = 98128843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98128957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49064453 + 49064454.

It is an arithmetic number, because the mean of its divisors is an integer number (49064454).

Almost surely, 2^98128907 is an apocalyptic number.

98128907 is a deficient number, since it is larger than the sum of its proper divisors (1).

98128907 is an equidigital number, since it uses as much as digits as its factorization.

98128907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 98128907 is about 9906.0035836860. The cubic root of 98128907 is about 461.2456894499.

The spelling of 98128907 in words is "ninety-eight million, one hundred twenty-eight thousand, nine hundred seven".