684148603 has 2 divisors, whose sum is σ = 684148604. Its totient is φ = 684148602.

The previous prime is 684148573. The next prime is 684148609. The reversal of 684148603 is 306841486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 684148603 - 2¹³ = 684140411 is a prime.

It is not a weakly prime, because it can be changed into another prime (684148609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342074301 + 342074302.

It is an arithmetic number, because the mean of its divisors is an integer number (342074302).

Almost surely, 2^684148603 is an apocalyptic number.

684148603 is a deficient number, since it is larger than the sum of its proper divisors (1).

684148603 is an equidigital number, since it uses as much as digits as its factorization.

684148603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 684148603 is about 26156.2344958138. The cubic root of 684148603 is about 881.1506139582.

The spelling of 684148603 in words is "six hundred eighty-four million, one hundred forty-eight thousand, six hundred three".