98728805 has 32 divisors (see below), whose sum is σ = 139062528. Its totient is φ = 65894400.

The previous prime is 98728757. The next prime is 98728849. The reversal of 98728805 is 50882789.

It is not a de Polignac number, because 98728805 - 2⁸ = 98728549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98728805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279509 + ... + 279861.

It is an arithmetic number, because the mean of its divisors is an integer number (4345704).

Almost surely, 2^98728805 is an apocalyptic number.

It is an amenable number.

98728805 is a deficient number, since it is larger than the sum of its proper divisors (40333723).

98728805 is a wasteful number, since it uses less digits than its factorization.

98728805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 98728805 is about 9936.2369637605. The cubic root of 98728805 is about 462.1837019254.

It can be divided in two parts, 987 and 28805, that added together give a palindrome (29792).

The spelling of 98728805 in words is "ninety-eight million, seven hundred twenty-eight thousand, eight hundred five".