7028113 has 4 divisors (see below), whose sum is σ = 7218100. Its totient is φ = 6838128.

The previous prime is 7028111. The next prime is 7028137. The reversal of 7028113 is 3118207.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3579664 + 3448449 = 1892^2 + 1857^2 .

It is a cyclic number.

It is not a de Polignac number, because 7028113 - 2¹ = 7028111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7028111) 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 3 ways as a sum of consecutive naturals, for example, 94938 + ... + 95011.

It is an arithmetic number, because the mean of its divisors is an integer number (1804525).

Almost surely, 2^7028113 is an apocalyptic number.

It is an amenable number.

7028113 is a deficient number, since it is larger than the sum of its proper divisors (189987).

7028113 is a wasteful number, since it uses less digits than its factorization.

7028113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189986.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 7028113 is about 2651.0588450655. The cubic root of 7028113 is about 191.5488630432.

The spelling of 7028113 in words is "seven million, twenty-eight thousand, one hundred thirteen".