7830028 has 12 divisors (see below), whose sum is σ = 14298480. Its totient is φ = 3744752.

The previous prime is 7830007. The next prime is 7830037. The reversal of 7830028 is 8200387.

It is a happy number.

It is a super-2 number, since 2×7830028² = 122618676961568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7829978 and 7830005.

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 3 ways as a sum of consecutive naturals, for example, 42463 + ... + 42646.

It is an arithmetic number, because the mean of its divisors is an integer number (1191540).

Almost surely, 2^7830028 is an apocalyptic number.

It is an amenable number.

7830028 is a deficient number, since it is larger than the sum of its proper divisors (6468452).

7830028 is a wasteful number, since it uses less digits than its factorization.

7830028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85136 (or 85134 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 7830028 is about 2798.2187191140. The cubic root of 7830028 is about 198.5734151391.

The spelling of 7830028 in words is "seven million, eight hundred thirty thousand, twenty-eight".