98864550 has 144 divisors (see below), whose sum is σ = 281648640. Its totient is φ = 25777440.

The previous prime is 98864539. The next prime is 98864551. The reversal of 98864550 is 5546889.

98864550 is a `hidden beast` number, since 98 + 8 + 6 + 4 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 98864496 and 98864505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98864551) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 959799 + ... + 959901.

Almost surely, 2^98864550 is an apocalyptic number.

98864550 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 98864550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140824320).

98864550 is an abundant number, since it is smaller than the sum of its proper divisors (182784090).

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

98864550 is a wasteful number, since it uses less digits than its factorization.

98864550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 98864550 is about 9943.0654226954. The cubic root of 98864550 is about 462.3954280258.

The spelling of 98864550 in words is "ninety-eight million, eight hundred sixty-four thousand, five hundred fifty".