544669813 has 2 divisors, whose sum is σ = 544669814. Its totient is φ = 544669812.

The previous prime is 544669787. The next prime is 544669819. The reversal of 544669813 is 318966445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 544662244 + 7569 = 23338^2 + 87^2 .

It is a cyclic number.

It is not a de Polignac number, because 544669813 - 2¹⁷ = 544538741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544669819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272334906 + 272334907.

It is an arithmetic number, because the mean of its divisors is an integer number (272334907).

Almost surely, 2^544669813 is an apocalyptic number.

It is an amenable number.

544669813 is a deficient number, since it is larger than the sum of its proper divisors (1).

544669813 is an equidigital number, since it uses as much as digits as its factorization.

544669813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The square root of 544669813 is about 23338.1621598617. The cubic root of 544669813 is about 816.6659253267.

The spelling of 544669813 in words is "five hundred forty-four million, six hundred sixty-nine thousand, eight hundred thirteen".