7289736 has 48 divisors (see below), whose sum is σ = 19377840. Its totient is φ = 2284800.

The previous prime is 7289731. The next prime is 7289741. The reversal of 7289736 is 6379827.

It is an interprime number because it is at equal distance from previous prime (7289731) and next prime (7289741).

It is not an unprimeable number, because it can be changed into a prime (7289731) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6411 + ... + 7461.

It is an arithmetic number, because the mean of its divisors is an integer number (403705).

Almost surely, 2^7289736 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 7289736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9688920).

7289736 is an abundant number, since it is smaller than the sum of its proper divisors (12088104).

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

7289736 is a wasteful number, since it uses less digits than its factorization.

7289736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1073 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 7289736 is about 2699.9511106685. The cubic root of 7289736 is about 193.8967814542.

Subtracting from 7289736 its reverse (6379827), we obtain a palindrome (909909).

The spelling of 7289736 in words is "seven million, two hundred eighty-nine thousand, seven hundred thirty-six".