674621000 has 64 divisors (see below), whose sum is σ = 1621367280. Its totient is φ = 262540800.

The previous prime is 674620957. The next prime is 674621041. The reversal of 674621000 is 126476.

It can be written as a sum of positive squares in 8 ways, for example, as 141657604 + 532963396 = 11902^2 + 23086^2 .

It is a super-2 number, since 2×674621000² = 910226987282000000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27884 + ... + 46116.

Almost surely, 2^674621000 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 674621000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810683640).

674621000 is an abundant number, since it is smaller than the sum of its proper divisors (946746280).

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

674621000 is a wasteful number, since it uses less digits than its factorization.

674621000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18291 (or 18277 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 674621000 is about 25973.4672310033. The cubic root of 674621000 is about 877.0411125454.

Adding to 674621000 its reverse (126476), we get a palindrome (674747476).

The spelling of 674621000 in words is "six hundred seventy-four million, six hundred twenty-one thousand".