509547673 has 2 divisors, whose sum is σ = 509547674. Its totient is φ = 509547672.

The previous prime is 509547653. The next prime is 509547679. The reversal of 509547673 is 376745905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297321049 + 212226624 = 17243^2 + 14568^2 .

It is a cyclic number.

It is not a de Polignac number, because 509547673 - 2¹⁷ = 509416601 is a prime.

It is not a weakly prime, because it can be changed into another prime (509547679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254773836 + 254773837.

It is an arithmetic number, because the mean of its divisors is an integer number (254773837).

Almost surely, 2^509547673 is an apocalyptic number.

It is an amenable number.

509547673 is a deficient number, since it is larger than the sum of its proper divisors (1).

509547673 is an equidigital number, since it uses as much as digits as its factorization.

509547673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 46.

The square root of 509547673 is about 22573.1626716329. The cubic root of 509547673 is about 798.7207016894.

The spelling of 509547673 in words is "five hundred nine million, five hundred forty-seven thousand, six hundred seventy-three".