98178642 has 20 divisors (see below), whose sum is σ = 219993246. Its totient is φ = 32726160.

The previous prime is 98178611. The next prime is 98178667. The reversal of 98178642 is 24687189.

It can be written as a sum of positive squares in only one way, i.e., 90839961 + 7338681 = 9531^2 + 2709^2 .

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 302859 + ... + 303182.

Almost surely, 2^98178642 is an apocalyptic number.

98178642 is an abundant number, since it is smaller than the sum of its proper divisors (121814604).

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

98178642 is a wasteful number, since it uses less digits than its factorization.

98178642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606055 (or 606046 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 98178642 is about 9908.5136120409. The cubic root of 98178642 is about 461.3236011837.

The spelling of 98178642 in words is "ninety-eight million, one hundred seventy-eight thousand, six hundred forty-two".