674489678 has 8 divisors (see below), whose sum is σ = 1011947520. Its totient is φ = 337173840.

The previous prime is 674489677. The next prime is 674489689. The reversal of 674489678 is 876984476.

674489678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674489677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22703 + ... + 43178.

It is an arithmetic number, because the mean of its divisors is an integer number (126493440).

Almost surely, 2^674489678 is an apocalyptic number.

674489678 is a deficient number, since it is larger than the sum of its proper divisors (337457842).

674489678 is a wasteful number, since it uses less digits than its factorization.

674489678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71002.

The product of its digits is 16257024, while the sum is 59.

The square root of 674489678 is about 25970.9391050844. The cubic root of 674489678 is about 876.9842004585.

The spelling of 674489678 in words is "six hundred seventy-four million, four hundred eighty-nine thousand, six hundred seventy-eight".