98215560 has 192 divisors, whose sum is σ = 342014400. Its totient is φ = 24371712.

The previous prime is 98215553. The next prime is 98215561. The reversal of 98215560 is 6551289.

It is a happy number.

98215560 is a `hidden beast` number, since 9 + 82 + 15 + 560 = 666.

It is a super-2 number, since 2×98215560² = 19292592452227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98215561) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 567634 + ... + 567806.

It is an arithmetic number, because the mean of its divisors is an integer number (1781325).

Almost surely, 2^98215560 is an apocalyptic number.

98215560 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98215560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171007200).

98215560 is an abundant number, since it is smaller than the sum of its proper divisors (243798840).

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

98215560 is a wasteful number, since it uses less digits than its factorization.

98215560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 98215560 is about 9910.3763803400. The cubic root of 98215560 is about 461.3814175956.

The spelling of 98215560 in words is "ninety-eight million, two hundred fifteen thousand, five hundred sixty".