668333674 has 8 divisors (see below), whose sum is σ = 1002772260. Its totient is φ = 334076256.

The previous prime is 668333621. The next prime is 668333693. The reversal of 668333674 is 476333866.

It can be written as a sum of positive squares in 2 ways, for example, as 571449025 + 96884649 = 23905^2 + 9843^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35659 + ... + 51070.

Almost surely, 2^668333674 is an apocalyptic number.

668333674 is a deficient number, since it is larger than the sum of its proper divisors (334438586).

668333674 is a wasteful number, since it uses less digits than its factorization.

668333674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90584.

The product of its digits is 1306368, while the sum is 46.

The square root of 668333674 is about 25852.1502780716. The cubic root of 668333674 is about 874.3079911973.

It can be divided in two parts, 66833 and 3674, that added together give a palindrome (70507).

The spelling of 668333674 in words is "six hundred sixty-eight million, three hundred thirty-three thousand, six hundred seventy-four".