546978673 has 2 divisors, whose sum is σ = 546978674. Its totient is φ = 546978672.

The previous prime is 546978569. The next prime is 546978697. The reversal of 546978673 is 376879645.

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., 508637809 + 38340864 = 22553^2 + 6192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-546978673 is a prime.

It is not a weakly prime, because it can be changed into another prime (546978373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273489336 + 273489337.

It is an arithmetic number, because the mean of its divisors is an integer number (273489337).

Almost surely, 2^546978673 is an apocalyptic number.

It is an amenable number.

546978673 is a deficient number, since it is larger than the sum of its proper divisors (1).

546978673 is an equidigital number, since it uses as much as digits as its factorization.

546978673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 55.

The square root of 546978673 is about 23387.5751842725. The cubic root of 546978673 is about 817.8182499023.

The spelling of 546978673 in words is "five hundred forty-six million, nine hundred seventy-eight thousand, six hundred seventy-three".