98885609 has 2 divisors, whose sum is σ = 98885610. Its totient is φ = 98885608.

The previous prime is 98885599. The next prime is 98885627. The reversal of 98885609 is 90658889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49843600 + 49042009 = 7060^2 + 7003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98885609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98885639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49442804 + 49442805.

It is an arithmetic number, because the mean of its divisors is an integer number (49442805).

Almost surely, 2^98885609 is an apocalyptic number.

It is an amenable number.

98885609 is a deficient number, since it is larger than the sum of its proper divisors (1).

98885609 is an equidigital number, since it uses as much as digits as its factorization.

98885609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The square root of 98885609 is about 9944.1243455621. The cubic root of 98885609 is about 462.4282570968.

The spelling of 98885609 in words is "ninety-eight million, eight hundred eighty-five thousand, six hundred nine".