98644554 has 40 divisors (see below), whose sum is σ = 225226980. Its totient is φ = 32258304.

The previous prime is 98644531. The next prime is 98644571. The reversal of 98644554 is 45544689.

98644554 is a `hidden beast` number, since 98 + 6 + 4 + 4 + 554 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 98545329 + 99225 = 9927^2 + 315^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2842 + ... + 14330.

Almost surely, 2^98644554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98644554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112613490).

98644554 is an abundant number, since it is smaller than the sum of its proper divisors (126582426).

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

98644554 is a wasteful number, since it uses less digits than its factorization.

98644554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11556 (or 11547 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 98644554 is about 9931.9964760364. The cubic root of 98644554 is about 462.0521951487.

The spelling of 98644554 in words is "ninety-eight million, six hundred forty-four thousand, five hundred fifty-four".