98423609 has 4 divisors (see below), whose sum is σ = 98918400. Its totient is φ = 97928820.

The previous prime is 98423599. The next prime is 98423617. The reversal of 98423609 is 90632489.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98423609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98423639) 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 in 3 ways as a sum of consecutive naturals, for example, 247097 + ... + 247494.

It is an arithmetic number, because the mean of its divisors is an integer number (24729600).

Almost surely, 2^98423609 is an apocalyptic number.

It is an amenable number.

98423609 is a deficient number, since it is larger than the sum of its proper divisors (494791).

98423609 is a wasteful number, since it uses less digits than its factorization.

98423609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494790.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 98423609 is about 9920.8673511947. The cubic root of 98423609 is about 461.7069676546.

The spelling of 98423609 in words is "ninety-eight million, four hundred twenty-three thousand, six hundred nine".