98478609 has 8 divisors (see below), whose sum is σ = 132580032. Its totient is φ = 65014800.

The previous prime is 98478593. The next prime is 98478613. The reversal of 98478609 is 90687489.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 98478609 - 2⁴ = 98478593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98478619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159042 + ... + 159659.

It is an arithmetic number, because the mean of its divisors is an integer number (16572504).

Almost surely, 2^98478609 is an apocalyptic number.

It is an amenable number.

98478609 is a deficient number, since it is larger than the sum of its proper divisors (34101423).

98478609 is a wasteful number, since it uses less digits than its factorization.

98478609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318807.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 98478609 is about 9923.6388991136. The cubic root of 98478609 is about 461.7929536452.

The spelling of 98478609 in words is "ninety-eight million, four hundred seventy-eight thousand, six hundred nine".