7028056 has 32 divisors (see below), whose sum is σ = 15432480. Its totient is φ = 2937600.

The previous prime is 7028033. The next prime is 7028057. The reversal of 7028056 is 6508207.

7028056 = 999² + 1000² + ... + 1005².

It is a super-2 number, since 2×7028056² = 98787142278272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7028057) by changing a digit.

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, 766 + ... + 3826.

It is an arithmetic number, because the mean of its divisors is an integer number (482265).

Almost surely, 2^7028056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7028056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7716240).

7028056 is an abundant number, since it is smaller than the sum of its proper divisors (8404424).

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

7028056 is a wasteful number, since it uses less digits than its factorization.

7028056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115 (or 3111 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 7028056 is about 2651.0480946222. The cubic root of 7028056 is about 191.5483452032.

The spelling of 7028056 in words is "seven million, twenty-eight thousand, fifty-six".