9878792 has 96 divisors (see below), whose sum is σ = 24624000. Its totient is φ = 3669120.

The previous prime is 9878773. The next prime is 9878797. The reversal of 9878792 is 2978789.

It is a happy number.

It is an Ulam number.

Its product of digits (508032) is a multiple of the sum of its prime divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 9878792.

It is not an unprimeable number, because it can be changed into a prime (9878797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125009 + ... + 125087.

It is an arithmetic number, because the mean of its divisors is an integer number (256500).

Almost surely, 2^9878792 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 9878792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12312000).

9878792 is an abundant number, since it is smaller than the sum of its proper divisors (14745208).

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

9878792 is a wasteful number, since it uses less digits than its factorization.

9878792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 128 counting only the distinct ones).

The product of its digits is 508032, while the sum is 50.

The square root of 9878792 is about 3143.0545652279. The cubic root of 9878792 is about 214.5694792157.

It can be divided in two parts, 987 and 8792, that added together give a palindrome (9779).

The spelling of 9878792 in words is "nine million, eight hundred seventy-eight thousand, seven hundred ninety-two".