98138550 has 24 divisors (see below), whose sum is σ = 243383976. Its totient is φ = 26170240.

The previous prime is 98138549. The next prime is 98138561. The reversal of 98138550 is 5583189.

It is a super-2 number, since 2×98138550² = 19262349992205000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 98138499 and 98138508.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 326979 + ... + 327278.

It is an arithmetic number, because the mean of its divisors is an integer number (10140999).

Almost surely, 2^98138550 is an apocalyptic number.

98138550 is an abundant number, since it is smaller than the sum of its proper divisors (145245426).

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

98138550 is a wasteful number, since it uses less digits than its factorization.

98138550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654272 (or 654267 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 98138550 is about 9906.4902967701. The cubic root of 98138550 is about 461.2607976262.

The spelling of 98138550 in words is "ninety-eight million, one hundred thirty-eight thousand, five hundred fifty".