674771328 has 192 divisors, whose sum is σ = 2421169920. Its totient is φ = 175242240.

The previous prime is 674771303. The next prime is 674771353. The reversal of 674771328 is 823177476.

It is an interprime number because it is at equal distance from previous prime (674771303) and next prime (674771353).

It is a tau number, because it is divible by the number of its divisors (192).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84901 + ... + 92507.

It is an arithmetic number, because the mean of its divisors is an integer number (12610260).

Almost surely, 2^674771328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674771328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1210584960).

674771328 is an abundant number, since it is smaller than the sum of its proper divisors (1746398592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674771328 is a wasteful number, since it uses less digits than its factorization.

674771328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7645 (or 7630 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 674771328 is about 25976.3609460602. The cubic root of 674771328 is about 877.1062523521.

The spelling of 674771328 in words is "six hundred seventy-four million, seven hundred seventy-one thousand, three hundred twenty-eight".