674968866 has 64 divisors (see below), whose sum is σ = 1592631936. Its totient is φ = 188006400.

The previous prime is 674968841. The next prime is 674968871. The reversal of 674968866 is 668869476.

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 31 ways as a sum of consecutive naturals, for example, 218976 + ... + 222036.

It is an arithmetic number, because the mean of its divisors is an integer number (24884874).

Almost surely, 2^674968866 is an apocalyptic number.

674968866 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 674968866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796315968).

674968866 is an abundant number, since it is smaller than the sum of its proper divisors (917663070).

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

674968866 is a wasteful number, since it uses less digits than its factorization.

674968866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347.

The product of its digits is 20901888, while the sum is 60.

The square root of 674968866 is about 25980.1629325145. The cubic root of 674968866 is about 877.1918343871.

The spelling of 674968866 in words is "six hundred seventy-four million, nine hundred sixty-eight thousand, eight hundred sixty-six".