98697728 has 40 divisors (see below), whose sum is σ = 201833808. Its totient is φ = 48190464.

The previous prime is 98697667. The next prime is 98697757. The reversal of 98697728 is 82779689.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19775 + ... + 24257.

Almost surely, 2^98697728 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 98697728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100916904).

98697728 is an abundant number, since it is smaller than the sum of its proper divisors (103136080).

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

98697728 is an equidigital number, since it uses as much as digits as its factorization.

98697728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544 (or 4528 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 56.

The square root of 98697728 is about 9934.6730192795. The cubic root of 98697728 is about 462.1352027725.

The spelling of 98697728 in words is "ninety-eight million, six hundred ninety-seven thousand, seven hundred twenty-eight".