7068728 has 32 divisors (see below), whose sum is σ = 14182560. Its totient is φ = 3294720.

The previous prime is 7068707. The next prime is 7068749. The reversal of 7068728 is 8278607.

It is an interprime number because it is at equal distance from previous prime (7068707) and next prime (7068749).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7068691 and 7068700.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 7076 + ... + 8012.

It is an arithmetic number, because the mean of its divisors is an integer number (443205).

Almost surely, 2^7068728 is an apocalyptic number.

It is an amenable number.

7068728 is an abundant number, since it is smaller than the sum of its proper divisors (7113832).

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

7068728 is a wasteful number, since it uses less digits than its factorization.

7068728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 7068728 is about 2658.7079568843. The cubic root of 7068728 is about 191.9171372759.

The spelling of 7068728 in words is "seven million, sixty-eight thousand, seven hundred twenty-eight".