544207889 has 2 divisors, whose sum is σ = 544207890. Its totient is φ = 544207888.

The previous prime is 544207831. The next prime is 544207891. The reversal of 544207889 is 988702445.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323388289 + 220819600 = 17983^2 + 14860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544207889 is a prime.

Together with 544207891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (544207819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272103944 + 272103945.

It is an arithmetic number, because the mean of its divisors is an integer number (272103945).

Almost surely, 2^544207889 is an apocalyptic number.

It is an amenable number.

544207889 is a deficient number, since it is larger than the sum of its proper divisors (1).

544207889 is an equidigital number, since it uses as much as digits as its factorization.

544207889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 544207889 is about 23328.2637373637. The cubic root of 544207889 is about 816.4349938065.

The spelling of 544207889 in words is "five hundred forty-four million, two hundred seven thousand, eight hundred eighty-nine".