7030813 has 4 divisors (see below), whose sum is σ = 7038460. Its totient is φ = 7023168.

The previous prime is 7030811. The next prime is 7030823. The reversal of 7030813 is 3180307.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3180307 = 13 ⋅244639.

It can be written as a sum of positive squares in 2 ways, for example, as 5654884 + 1375929 = 2378^2 + 1173^2 .

It is a cyclic number.

It is not a de Polignac number, because 7030813 - 2¹ = 7030811 is a prime.

It is a super-3 number, since 3×7030813³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7030811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220 + ... + 4357.

It is an arithmetic number, because the mean of its divisors is an integer number (1759615).

Almost surely, 2^7030813 is an apocalyptic number.

It is an amenable number.

7030813 is a deficient number, since it is larger than the sum of its proper divisors (7647).

7030813 is a wasteful number, since it uses less digits than its factorization.

7030813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7646.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7030813 is about 2651.5680266589. The cubic root of 7030813 is about 191.5733891009.

The spelling of 7030813 in words is "seven million, thirty thousand, eight hundred thirteen".