98778432 has 112 divisors (see below), whose sum is σ = 282439872. Its totient is φ = 30351360.

The previous prime is 98778413. The next prime is 98778451. The reversal of 98778432 is 23487789.

It is an interprime number because it is at equal distance from previous prime (98778413) and next prime (98778451).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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, 172707 + ... + 173277.

Almost surely, 2^98778432 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 98778432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141219936).

98778432 is an abundant number, since it is smaller than the sum of its proper divisors (183661440).

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

98778432 is a wasteful number, since it uses less digits than its factorization.

98778432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 646 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 98778432 is about 9938.7339233929. The cubic root of 98778432 is about 462.2611293405.

The spelling of 98778432 in words is "ninety-eight million, seven hundred seventy-eight thousand, four hundred thirty-two".