98778486 has 16 divisors (see below), whose sum is σ = 198407664. Its totient is φ = 32784384.

The previous prime is 98778481. The next prime is 98778497. The reversal of 98778486 is 68487789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98778481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33931 + ... + 36726.

It is an arithmetic number, because the mean of its divisors is an integer number (12400479).

Almost surely, 2^98778486 is an apocalyptic number.

98778486 is an abundant number, since it is smaller than the sum of its proper divisors (99629178).

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

98778486 is a wasteful number, since it uses less digits than its factorization.

98778486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70895.

The product of its digits is 5419008, while the sum is 57.

The square root of 98778486 is about 9938.7366400363. The cubic root of 98778486 is about 462.2612135765.

The spelling of 98778486 in words is "ninety-eight million, seven hundred seventy-eight thousand, four hundred eighty-six".