668002933 has 8 divisors (see below), whose sum is σ = 719595576. Its totient is φ = 616440000.

The previous prime is 668002891. The next prime is 668002943. The reversal of 668002933 is 339200866.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110712484 + 557290449 = 10522^2 + 23607^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 668002933 - 2²⁵ = 634448501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 668002892 and 668002901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668002943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66843 + ... + 76183.

It is an arithmetic number, because the mean of its divisors is an integer number (89949447).

Almost surely, 2^668002933 is an apocalyptic number.

It is an amenable number.

668002933 is a deficient number, since it is larger than the sum of its proper divisors (51592643).

668002933 is a wasteful number, since it uses less digits than its factorization.

668002933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14855.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 668002933 is about 25845.7527071664. The cubic root of 668002933 is about 874.1637432842.

The spelling of 668002933 in words is "six hundred sixty-eight million, two thousand, nine hundred thirty-three".