674999556 has 96 divisors (see below), whose sum is σ = 1991485440. Its totient is φ = 172838400.

The previous prime is 674999527. The next prime is 674999557. The reversal of 674999556 is 655999476.

It is a self number, because there is not a number n which added to its sum of digits gives 674999556.

It is not an unprimeable number, because it can be changed into a prime (674999557) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 60460 + ... + 70748.

It is an arithmetic number, because the mean of its divisors is an integer number (20744640).

Almost surely, 2^674999556 is an apocalyptic number.

674999556 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674999556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (995742720).

674999556 is an abundant number, since it is smaller than the sum of its proper divisors (1316485884).

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

674999556 is a wasteful number, since it uses less digits than its factorization.

674999556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10385 (or 10383 counting only the distinct ones).

The product of its digits is 18370800, while the sum is 60.

The square root of 674999556 is about 25980.7535687478. The cubic root of 674999556 is about 877.2051291284.

The spelling of 674999556 in words is "six hundred seventy-four million, nine hundred ninety-nine thousand, five hundred fifty-six".