601668439 has 2 divisors, whose sum is σ = 601668440. Its totient is φ = 601668438.

The previous prime is 601668343. The next prime is 601668443. The reversal of 601668439 is 934866106.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 601668439 - 2¹¹ = 601666391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 601668395 and 601668404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601668449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300834219 + 300834220.

It is an arithmetic number, because the mean of its divisors is an integer number (300834220).

Almost surely, 2^601668439 is an apocalyptic number.

601668439 is a deficient number, since it is larger than the sum of its proper divisors (1).

601668439 is an equidigital number, since it uses as much as digits as its factorization.

601668439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 601668439 is about 24528.9306534141. The cubic root of 601668439 is about 844.2137284132.

The spelling of 601668439 in words is "six hundred one million, six hundred sixty-eight thousand, four hundred thirty-nine".