668800583 has 4 divisors (see below), whose sum is σ = 729600648. Its totient is φ = 608000520.

The previous prime is 668800537. The next prime is 668800591. The reversal of 668800583 is 385008866.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 668800583 - 2¹⁸ = 668538439 is a prime.

It is a super-2 number, since 2×668800583² = 894588439642279778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668800283) 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 3 ways as a sum of consecutive naturals, for example, 30400016 + ... + 30400037.

It is an arithmetic number, because the mean of its divisors is an integer number (182400162).

Almost surely, 2^668800583 is an apocalyptic number.

668800583 is a deficient number, since it is larger than the sum of its proper divisors (60800065).

668800583 is a wasteful number, since it uses less digits than its factorization.

668800583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60800064.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 668800583 is about 25861.1790721150. The cubic root of 668800583 is about 874.5115458283.

The spelling of 668800583 in words is "six hundred sixty-eight million, eight hundred thousand, five hundred eighty-three".