7998336 has 96 divisors (see below), whose sum is σ = 23629320. Its totient is φ = 2595840.

The previous prime is 7998307. The next prime is 7998337. The reversal of 7998336 is 6338997.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an Ulam number.

Its product of digits (244944) is a multiple of the sum of its prime divisors (189).

It is a junction number, because it is equal to n+sod(n) for n = 7998291 and 7998300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60991 + ... + 61121.

Almost surely, 2^7998336 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 7998336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11814660).

7998336 is an abundant number, since it is smaller than the sum of its proper divisors (15630984).

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

7998336 is a wasteful number, since it uses less digits than its factorization.

7998336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 189 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 7998336 is about 2828.1329530275. The cubic root of 7998336 is about 199.9861323718.

The spelling of 7998336 in words is "seven million, nine hundred ninety-eight thousand, three hundred thirty-six".