98649009 has 32 divisors (see below), whose sum is σ = 151536000. Its totient is φ = 64175328.

The previous prime is 98648983. The next prime is 98649029. The reversal of 98649009 is 90094689.

It is not a de Polignac number, because 98649009 - 2⁷ = 98648881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98649029) 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 in 31 ways as a sum of consecutive naturals, for example, 93517 + ... + 94565.

It is an arithmetic number, because the mean of its divisors is an integer number (4735500).

Almost surely, 2^98649009 is an apocalyptic number.

It is an amenable number.

98649009 is a deficient number, since it is larger than the sum of its proper divisors (52886991).

98649009 is an equidigital number, since it uses as much as digits as its factorization.

98649009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 98649009 is about 9932.2207486544. The cubic root of 98649009 is about 462.0591508006.

The spelling of 98649009 in words is "ninety-eight million, six hundred forty-nine thousand, nine".