98637984 has 72 divisors (see below), whose sum is σ = 292717152. Its totient is φ = 31447680.

The previous prime is 98637977. The next prime is 98637989. The reversal of 98637984 is 48973689.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 98637984.

It is not an unprimeable number, because it can be changed into a prime (98637989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 822 + ... + 14069.

It is an arithmetic number, because the mean of its divisors is an integer number (4065516).

Almost surely, 2^98637984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98637984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146358576).

98637984 is an abundant number, since it is smaller than the sum of its proper divisors (194079168).

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

98637984 is a wasteful number, since it uses less digits than its factorization.

98637984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14930 (or 14919 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 98637984 is about 9931.6657213178. The cubic root of 98637984 is about 462.0419369364.

The spelling of 98637984 in words is "ninety-eight million, six hundred thirty-seven thousand, nine hundred eighty-four".