544636369 has 2 divisors, whose sum is σ = 544636370. Its totient is φ = 544636368.

The previous prime is 544636363. The next prime is 544636373. The reversal of 544636369 is 963636445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 488984769 + 55651600 = 22113^2 + 7460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544636369 is a prime.

It is a super-2 number, since 2×544636369² = 593257548875008322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (544636363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272318184 + 272318185.

It is an arithmetic number, because the mean of its divisors is an integer number (272318185).

Almost surely, 2^544636369 is an apocalyptic number.

It is an amenable number.

544636369 is a deficient number, since it is larger than the sum of its proper divisors (1).

544636369 is an equidigital number, since it uses as much as digits as its factorization.

544636369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 46.

The square root of 544636369 is about 23337.4456400010. The cubic root of 544636369 is about 816.6492099189.

The spelling of 544636369 in words is "five hundred forty-four million, six hundred thirty-six thousand, three hundred sixty-nine".