7028660 has 24 divisors (see below), whose sum is σ = 14811720. Its totient is φ = 2801664.

The previous prime is 7028657. The next prime is 7028663. The reversal of 7028660 is 668207.

It is an interprime number because it is at equal distance from previous prime (7028657) and next prime (7028663).

It can be written as a sum of positive squares in 4 ways, for example, as 1449616 + 5579044 = 1204^2 + 2362^2 .

It is a super-2 number, since 2×7028660² = 98804122791200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7028663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8756 + ... + 9524.

It is an arithmetic number, because the mean of its divisors is an integer number (617155).

Almost surely, 2^7028660 is an apocalyptic number.

It is an amenable number.

7028660 is an abundant number, since it is smaller than the sum of its proper divisors (7783060).

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

7028660 is a wasteful number, since it uses less digits than its factorization.

7028660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 7028660 is about 2651.1620093838. The cubic root of 7028660 is about 191.5538323481.

The spelling of 7028660 in words is "seven million, twenty-eight thousand, six hundred sixty".