7825288 has 24 divisors (see below), whose sum is σ = 14978430. Its totient is φ = 3832640.

The previous prime is 7825261. The next prime is 7825327. The reversal of 7825288 is 8825287.

It can be written as a sum of positive squares in only one way, i.e., 6140484 + 1684804 = 2478^2 + 1298^2 .

It is a super-2 number, since 2×7825288² = 122470264565888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7825288.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 27708 + ... + 27988.

Almost surely, 2^7825288 is an apocalyptic number.

It is an amenable number.

7825288 is a deficient number, since it is larger than the sum of its proper divisors (7153142).

7825288 is a wasteful number, since it uses less digits than its factorization.

7825288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 342 counting only the distinct ones).

The product of its digits is 71680, while the sum is 40.

The square root of 7825288 is about 2797.3716235066. The cubic root of 7825288 is about 198.5333374628.

Subtracting 7825288 from its reverse (8825287), we obtain a palindrome (999999).

The spelling of 7825288 in words is "seven million, eight hundred twenty-five thousand, two hundred eighty-eight".