98609709 has 16 divisors (see below), whose sum is σ = 145866240. Its totient is φ = 58749360.

The previous prime is 98609701. The next prime is 98609747. The reversal of 98609709 is 90790689.

It is a happy number.

It is not a de Polignac number, because 98609709 - 2³ = 98609701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98609701) 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 15 ways as a sum of consecutive naturals, for example, 23377 + ... + 27270.

It is an arithmetic number, because the mean of its divisors is an integer number (9116640).

Almost surely, 2^98609709 is an apocalyptic number.

It is an amenable number.

98609709 is a deficient number, since it is larger than the sum of its proper divisors (47256531).

98609709 is a wasteful number, since it uses less digits than its factorization.

98609709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50720.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 98609709 is about 9930.2421420628. The cubic root of 98609709 is about 461.9977839514.

The spelling of 98609709 in words is "ninety-eight million, six hundred nine thousand, seven hundred nine".