674248439 has 2 divisors, whose sum is σ = 674248440. Its totient is φ = 674248438.

The previous prime is 674248411. The next prime is 674248583. The reversal of 674248439 is 934842476.

It is a happy number.

674248439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674248439 is a prime.

It is a super-2 number, since 2×674248439² = 909221914987873442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 674248393 and 674248402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674278439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337124219 + 337124220.

It is an arithmetic number, because the mean of its divisors is an integer number (337124220).

Almost surely, 2^674248439 is an apocalyptic number.

674248439 is a deficient number, since it is larger than the sum of its proper divisors (1).

674248439 is an equidigital number, since it uses as much as digits as its factorization.

674248439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 47.

The square root of 674248439 is about 25966.2942870175. The cubic root of 674248439 is about 876.8796334917.

The spelling of 674248439 in words is "six hundred seventy-four million, two hundred forty-eight thousand, four hundred thirty-nine".