7180828 has 24 divisors (see below), whose sum is σ = 13039488. Its totient is φ = 3457776.

The previous prime is 7180819. The next prime is 7180829. The reversal of 7180828 is 8280817.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7180793 and 7180802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7180829) 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 7 ways as a sum of consecutive naturals, for example, 14025 + ... + 14527.

It is an arithmetic number, because the mean of its divisors is an integer number (543312).

Almost surely, 2^7180828 is an apocalyptic number.

It is an amenable number.

7180828 is a deficient number, since it is larger than the sum of its proper divisors (5858660).

7180828 is a wasteful number, since it uses less digits than its factorization.

7180828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 7180828 is about 2679.7067003685. The cubic root of 7180828 is about 192.9263323240.

It can be divided in two parts, 7180 and 828, that added together give a palindrome (8008).

The spelling of 7180828 in words is "seven million, one hundred eighty thousand, eight hundred twenty-eight".