7920712 has 16 divisors (see below), whose sum is σ = 15363900. Its totient is φ = 3823680.

The previous prime is 7920709. The next prime is 7920713. The reversal of 7920712 is 2170297.

It is a happy number.

7920712 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7918596 + 2116 = 2814^2 + 46^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7920713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16839 + ... + 17302.

Almost surely, 2^7920712 is an apocalyptic number.

It is an amenable number.

7920712 is a deficient number, since it is larger than the sum of its proper divisors (7443188).

7920712 is a wasteful number, since it uses less digits than its factorization.

7920712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34176 (or 34172 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 7920712 is about 2814.3759521429. The cubic root of 7920712 is about 199.3370717250.

The spelling of 7920712 in words is "seven million, nine hundred twenty thousand, seven hundred twelve".