98638554 has 32 divisors (see below), whose sum is σ = 225976320. Its totient is φ = 28117872.

The previous prime is 98638511. The next prime is 98638577. The reversal of 98638554 is 45583689.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17667 + ... + 22569.

It is an arithmetic number, because the mean of its divisors is an integer number (7061760).

Almost surely, 2^98638554 is an apocalyptic number.

98638554 is an abundant number, since it is smaller than the sum of its proper divisors (127337766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98638554 is a wasteful number, since it uses less digits than its factorization.

98638554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5394.

The product of its digits is 1036800, while the sum is 48.

The square root of 98638554 is about 9931.6944173691. The cubic root of 98638554 is about 462.0428269363.

The spelling of 98638554 in words is "ninety-eight million, six hundred thirty-eight thousand, five hundred fifty-four".