7004520 has 48 divisors (see below), whose sum is σ = 22765860. Its totient is φ = 1867776.

The previous prime is 7004513. The next prime is 7004593. The reversal of 7004520 is 254007.

It is a happy number.

7004520 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 6937956 + 66564 = 2634^2 + 258^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 7004493 and 7004502.

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 11 ways as a sum of consecutive naturals, for example, 9369 + ... + 10088.

Almost surely, 2^7004520 is an apocalyptic number.

It is an amenable number.

7004520 is an abundant number, since it is smaller than the sum of its proper divisors (15761340).

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

7004520 is a wasteful number, since it uses less digits than its factorization.

7004520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19474 (or 19467 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 7004520 is about 2646.6053729259. The cubic root of 7004520 is about 191.3342829847.

Adding to 7004520 its reverse (254007), we get a palindrome (7258527).

The spelling of 7004520 in words is "seven million, four thousand, five hundred twenty".