98401578 has 16 divisors (see below), whose sum is σ = 214694496. Its totient is φ = 29818640.

The previous prime is 98401571. The next prime is 98401579. The reversal of 98401578 is 87510489.

It is not an unprimeable number, because it can be changed into a prime (98401571) 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 7 ways as a sum of consecutive naturals, for example, 745401 + ... + 745532.

It is an arithmetic number, because the mean of its divisors is an integer number (13418406).

Almost surely, 2^98401578 is an apocalyptic number.

98401578 is an abundant number, since it is smaller than the sum of its proper divisors (116292918).

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

98401578 is a wasteful number, since it uses less digits than its factorization.

98401578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490949.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 98401578 is about 9919.7569526677. The cubic root of 98401578 is about 461.6725158079.

The spelling of 98401578 in words is "ninety-eight million, four hundred one thousand, five hundred seventy-eight".