7720616 has 32 divisors (see below), whose sum is σ = 14968800. Its totient is φ = 3731520.

The previous prime is 7720597. The next prime is 7720619. The reversal of 7720616 is 6160277.

It is a super-2 number, since 2×7720616² = 119215822838912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7720619) 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 7 ways as a sum of consecutive naturals, for example, 55475 + ... + 55613.

It is an arithmetic number, because the mean of its divisors is an integer number (467775).

Almost surely, 2^7720616 is an apocalyptic number.

It is an amenable number.

7720616 is a deficient number, since it is larger than the sum of its proper divisors (7248184).

7720616 is a wasteful number, since it uses less digits than its factorization.

7720616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 7720616 is about 2778.5996473044. The cubic root of 7720616 is about 197.6441590239.

The spelling of 7720616 in words is "seven million, seven hundred twenty thousand, six hundred sixteen".