7720113 has 8 divisors (see below), whose sum is σ = 10310976. Its totient is φ = 5138000.

The previous prime is 7720109. The next prime is 7720121. The reversal of 7720113 is 3110277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7720113 - 2² = 7720109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7720113.

It is not an unprimeable number, because it can be changed into a prime (7720103) 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, 268 + ... + 3938.

It is an arithmetic number, because the mean of its divisors is an integer number (1288872).

Almost surely, 2^7720113 is an apocalyptic number.

It is an amenable number.

7720113 is a deficient number, since it is larger than the sum of its proper divisors (2590863).

7720113 is a wasteful number, since it uses less digits than its factorization.

7720113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 7720113 is about 2778.5091326105. The cubic root of 7720113 is about 197.6398667424.

The spelling of 7720113 in words is "seven million, seven hundred twenty thousand, one hundred thirteen".