7607343721 has 2 divisors, whose sum is σ = 7607343722. Its totient is φ = 7607343720.

The previous prime is 7607343707. The next prime is 7607343739. The reversal of 7607343721 is 1273437067.

7607343721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6464160000 + 1143183721 = 80400^2 + 33811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7607343721 is a prime.

It is not a weakly prime, because it can be changed into another prime (7607343761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3803671860 + 3803671861.

It is an arithmetic number, because the mean of its divisors is an integer number (3803671861).

Almost surely, 2^7607343721 is an apocalyptic number.

It is an amenable number.

7607343721 is a deficient number, since it is larger than the sum of its proper divisors (1).

7607343721 is an equidigital number, since it uses as much as digits as its factorization.

7607343721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 7607343721 is about 87220.0878295820. The cubic root of 7607343721 is about 1966.7282066574.

The spelling of 7607343721 in words is "seven billion, six hundred seven million, three hundred forty-three thousand, seven hundred twenty-one".