9979392 has 80 divisors (see below), whose sum is σ = 27252720. Its totient is φ = 3244032.

The previous prime is 9979337. The next prime is 9979399. The reversal of 9979392 is 2939799.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112084 + ... + 112172.

It is an arithmetic number, because the mean of its divisors is an integer number (340659).

Almost surely, 2^9979392 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 9979392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13626360).

9979392 is an abundant number, since it is smaller than the sum of its proper divisors (17273328).

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

9979392 is an equidigital number, since it uses as much as digits as its factorization.

9979392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 167 counting only the distinct ones).

The product of its digits is 275562, while the sum is 48.

The square root of 9979392 is about 3159.0175688020. The cubic root of 9979392 is about 215.2953719234.

The spelling of 9979392 in words is "nine million, nine hundred seventy-nine thousand, three hundred ninety-two".