98507897 has 2 divisors, whose sum is σ = 98507898. Its totient is φ = 98507896.

The previous prime is 98507891. The next prime is 98507921. The reversal of 98507897 is 79870589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86508601 + 11999296 = 9301^2 + 3464^2 .

It is a cyclic number.

It is not a de Polignac number, because 98507897 - 2⁴ = 98507881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98507891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49253948 + 49253949.

It is an arithmetic number, because the mean of its divisors is an integer number (49253949).

Almost surely, 2^98507897 is an apocalyptic number.

It is an amenable number.

98507897 is a deficient number, since it is larger than the sum of its proper divisors (1).

98507897 is an equidigital number, since it uses as much as digits as its factorization.

98507897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The square root of 98507897 is about 9925.1144577783. The cubic root of 98507897 is about 461.8387289041.

The spelling of 98507897 in words is "ninety-eight million, five hundred seven thousand, eight hundred ninety-seven".