654740579 has 2 divisors, whose sum is σ = 654740580. Its totient is φ = 654740578.

The previous prime is 654740557. The next prime is 654740617. The reversal of 654740579 is 975047456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654740579 - 2¹² = 654736483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (654740509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327370289 + 327370290.

It is an arithmetic number, because the mean of its divisors is an integer number (327370290).

Almost surely, 2^654740579 is an apocalyptic number.

654740579 is a deficient number, since it is larger than the sum of its proper divisors (1).

654740579 is an equidigital number, since it uses as much as digits as its factorization.

654740579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 654740579 is about 25587.8990735855. The cubic root of 654740579 is about 868.3398910093.

The spelling of 654740579 in words is "six hundred fifty-four million, seven hundred forty thousand, five hundred seventy-nine".