98709587 has 2 divisors, whose sum is σ = 98709588. Its totient is φ = 98709586.

The previous prime is 98709581. The next prime is 98709619. The reversal of 98709587 is 78590789.

It is a weak prime.

It is an emirp because it is prime and its reverse (78590789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98709587 - 2¹⁸ = 98447443 is a prime.

It is not a weakly prime, because it can be changed into another prime (98709581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49354793 + 49354794.

It is an arithmetic number, because the mean of its divisors is an integer number (49354794).

Almost surely, 2^98709587 is an apocalyptic number.

98709587 is a deficient number, since it is larger than the sum of its proper divisors (1).

98709587 is an equidigital number, since it uses as much as digits as its factorization.

98709587 is an evil number, because the sum of its binary digits is even.

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

The square root of 98709587 is about 9935.2698503866. The cubic root of 98709587 is about 462.1537112765.

The spelling of 98709587 in words is "ninety-eight million, seven hundred nine thousand, five hundred eighty-seven".