674064239 has 4 divisors (see below), whose sum is σ = 680608656. Its totient is φ = 667519824.

The previous prime is 674064233. The next prime is 674064241. The reversal of 674064239 is 932460476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 674064239 - 2⁸ = 674063983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 674064196 and 674064205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674064233) 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 in 3 ways as a sum of consecutive naturals, for example, 3272054 + ... + 3272259.

It is an arithmetic number, because the mean of its divisors is an integer number (170152164).

Almost surely, 2^674064239 is an apocalyptic number.

674064239 is a deficient number, since it is larger than the sum of its proper divisors (6544417).

674064239 is a wasteful number, since it uses less digits than its factorization.

674064239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6544416.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 674064239 is about 25962.7471389297. The cubic root of 674064239 is about 876.7997737396.

The spelling of 674064239 in words is "six hundred seventy-four million, sixty-four thousand, two hundred thirty-nine".