7725306347 has 8 divisors (see below), whose sum is σ = 8497258032. Its totient is φ = 7023004560.

The previous prime is 7725306343. The next prime is 7725306367. The reversal of 7725306347 is 7436035277.

7725306347 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7725306347 - 2² = 7725306343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7725306298 and 7725306307.

It is not an unprimeable number, because it can be changed into a prime (7725306343) 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, 2900738 + ... + 2903399.

It is an arithmetic number, because the mean of its divisors is an integer number (1062157254).

Almost surely, 2^7725306347 is an apocalyptic number.

7725306347 is a deficient number, since it is larger than the sum of its proper divisors (771951685).

7725306347 is an equidigital number, since it uses as much as digits as its factorization.

7725306347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804170 (or 5804148 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 44.

The square root of 7725306347 is about 87893.7218861507. The cubic root of 7725306347 is about 1976.8417448494.

It can be divided in two parts, 772530 and 6347, that added together give a palindrome (778877).

The spelling of 7725306347 in words is "seven billion, seven hundred twenty-five million, three hundred six thousand, three hundred forty-seven".