98781285 has 16 divisors (see below), whose sum is σ = 166368960. Its totient is φ = 49910400.

The previous prime is 98781239. The next prime is 98781289. The reversal of 98781285 is 58218789.

It is not a de Polignac number, because 98781285 - 2¹⁰ = 98780261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98781289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173016 + ... + 173585.

It is an arithmetic number, because the mean of its divisors is an integer number (10398060).

Almost surely, 2^98781285 is an apocalyptic number.

98781285 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

98781285 is a deficient number, since it is larger than the sum of its proper divisors (67587675).

98781285 is a wasteful number, since it uses less digits than its factorization.

98781285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346628.

The product of its digits is 322560, while the sum is 48.

The square root of 98781285 is about 9938.8774517045. The cubic root of 98781285 is about 462.2655797665.

The spelling of 98781285 in words is "ninety-eight million, seven hundred eighty-one thousand, two hundred eighty-five".