7720710047 has 4 divisors (see below), whose sum is σ = 7760713920. Its totient is φ = 7680706176.

The previous prime is 7720710031. The next prime is 7720710077. The reversal of 7720710047 is 7400170277.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7400170277 = 191 ⋅38744347.

It is a cyclic number.

It is not a de Polignac number, because 7720710047 - 2⁴ = 7720710031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7720709989 and 7720710016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7720710007) 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 in 3 ways as a sum of consecutive naturals, for example, 20001647 + ... + 20002032.

It is an arithmetic number, because the mean of its divisors is an integer number (1940178480).

Almost surely, 2^7720710047 is an apocalyptic number.

7720710047 is a deficient number, since it is larger than the sum of its proper divisors (40003873).

7720710047 is a wasteful number, since it uses less digits than its factorization.

7720710047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40003872.

The product of its (nonzero) digits is 19208, while the sum is 35.

The square root of 7720710047 is about 87867.5710771613. The cubic root of 7720710047 is about 1976.4496154034.

The spelling of 7720710047 in words is "seven billion, seven hundred twenty million, seven hundred ten thousand, forty-seven".