98398278 has 192 divisors, whose sum is σ = 271724544. Its totient is φ = 25344000.

The previous prime is 98398241. The next prime is 98398291. The reversal of 98398278 is 87289389.

It is a super-2 number, since 2×98398278² = 19364442226730568, which contains 22 as substring.

Its product of digits (1741824) is a multiple of the sum of its prime divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2399938 + ... + 2399978.

It is an arithmetic number, because the mean of its divisors is an integer number (1415232).

Almost surely, 2^98398278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98398278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135862272).

98398278 is an abundant number, since it is smaller than the sum of its proper divisors (173326266).

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

98398278 is a wasteful number, since it uses less digits than its factorization.

98398278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 128 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 98398278 is about 9919.5906165527. The cubic root of 98398278 is about 461.6673548597.

Subtracting from 98398278 its reverse (87289389), we obtain a square (11108889 = 3333²).

The spelling of 98398278 in words is "ninety-eight million, three hundred ninety-eight thousand, two hundred seventy-eight".