546890789 has 2 divisors, whose sum is σ = 546890790. Its totient is φ = 546890788.

The previous prime is 546890767. The next prime is 546890791. The reversal of 546890789 is 987098645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323388289 + 223502500 = 17983^2 + 14950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-546890789 is a prime.

Together with 546890791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546890749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273445394 + 273445395.

It is an arithmetic number, because the mean of its divisors is an integer number (273445395).

Almost surely, 2^546890789 is an apocalyptic number.

It is an amenable number.

546890789 is a deficient number, since it is larger than the sum of its proper divisors (1).

546890789 is an equidigital number, since it uses as much as digits as its factorization.

546890789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 546890789 is about 23385.6962479204. The cubic root of 546890789 is about 817.7744474700.

The spelling of 546890789 in words is "five hundred forty-six million, eight hundred ninety thousand, seven hundred eighty-nine".