7720713 has 48 divisors (see below), whose sum is σ = 14990976. Its totient is φ = 3697920.

The previous prime is 7720697. The next prime is 7720717. The reversal of 7720713 is 3170277.

It is not a de Polignac number, because 7720713 - 2⁴ = 7720697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7720717) 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 47 ways as a sum of consecutive naturals, for example, 8581 + ... + 9437.

It is an arithmetic number, because the mean of its divisors is an integer number (312312).

Almost surely, 2^7720713 is an apocalyptic number.

It is an amenable number.

7720713 is a deficient number, since it is larger than the sum of its proper divisors (7270263).

7720713 is a wasteful number, since it uses less digits than its factorization.

7720713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

The square root of 7720713 is about 2778.6171020851. The cubic root of 7720713 is about 197.6449867386.

The spelling of 7720713 in words is "seven million, seven hundred twenty thousand, seven hundred thirteen".