7028818 has 4 divisors (see below), whose sum is σ = 10543230. Its totient is φ = 3514408.

The previous prime is 7028797. The next prime is 7028831. The reversal of 7028818 is 8188207.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5890329 + 1138489 = 2427^2 + 1067^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1757203 + ... + 1757206.

Almost surely, 2^7028818 is an apocalyptic number.

7028818 is a deficient number, since it is larger than the sum of its proper divisors (3514412).

7028818 is a wasteful number, since it uses less digits than its factorization.

7028818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514411.

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

The square root of 7028818 is about 2651.1918074707. The cubic root of 7028818 is about 191.5552676753. Note that the first 3 decimals are identical.

The spelling of 7028818 in words is "seven million, twenty-eight thousand, eight hundred eighteen".