618804413 has 2 divisors, whose sum is σ = 618804414. Its totient is φ = 618804412.

The previous prime is 618804409. The next prime is 618804457. The reversal of 618804413 is 314408816.

618804413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 453604804 + 165199609 = 21298^2 + 12853^2 .

It is a cyclic number.

It is not a de Polignac number, because 618804413 - 2² = 618804409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (618806413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309402206 + 309402207.

It is an arithmetic number, because the mean of its divisors is an integer number (309402207).

Almost surely, 2^618804413 is an apocalyptic number.

It is an amenable number.

618804413 is a deficient number, since it is larger than the sum of its proper divisors (1).

618804413 is an equidigital number, since it uses as much as digits as its factorization.

618804413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 618804413 is about 24875.7796460734. The cubic root of 618804413 is about 852.1534384802.

The spelling of 618804413 in words is "six hundred eighteen million, eight hundred four thousand, four hundred thirteen".