4618813 has 2 divisors, whose sum is σ = 4618814. Its totient is φ = 4618812.

The previous prime is 4618807. The next prime is 4618841. The reversal of 4618813 is 3188164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4334724 + 284089 = 2082^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 4618813 - 2¹⁷ = 4487741 is a prime.

4618813 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4618853) 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 as a sum of consecutive naturals, namely, 2309406 + 2309407.

It is an arithmetic number, because the mean of its divisors is an integer number (2309407).

Almost surely, 2^4618813 is an apocalyptic number.

It is an amenable number.

4618813 is a deficient number, since it is larger than the sum of its proper divisors (1).

4618813 is an equidigital number, since it uses as much as digits as its factorization.

4618813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 31.

The square root of 4618813 is about 2149.1423870930. The cubic root of 4618813 is about 166.5367658921.

The spelling of 4618813 in words is "four million, six hundred eighteen thousand, eight hundred thirteen".