7952720 has 20 divisors (see below), whose sum is σ = 18490260. Its totient is φ = 3181056.

The previous prime is 7952701. The next prime is 7952761. The reversal of 7952720 is 272597.

It can be written as a sum of positive squares in 2 ways, for example, as 4048144 + 3904576 = 2012^2 + 1976^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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, 49625 + ... + 49784.

It is an arithmetic number, because the mean of its divisors is an integer number (924513).

Almost surely, 2^7952720 is an apocalyptic number.

It is an amenable number.

7952720 is an abundant number, since it is smaller than the sum of its proper divisors (10537540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7952720 is a wasteful number, since it uses less digits than its factorization.

7952720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99422 (or 99416 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 7952720 is about 2820.0567370179. The cubic root of 7952720 is about 199.6052212615.

The spelling of 7952720 in words is "seven million, nine hundred fifty-two thousand, seven hundred twenty".