668583935 has 8 divisors (see below), whose sum is σ = 802731600. Its totient is φ = 534579904.

The previous prime is 668583917. The next prime is 668583961. The reversal of 668583935 is 539385866.

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 668583935 - 2¹² = 668579839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25385 + ... + 44514.

It is an arithmetic number, because the mean of its divisors is an integer number (100341450).

Almost surely, 2^668583935 is an apocalyptic number.

668583935 is a deficient number, since it is larger than the sum of its proper divisors (134147665).

668583935 is a wasteful number, since it uses less digits than its factorization.

668583935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71817.

The product of its digits is 4665600, while the sum is 53.

The square root of 668583935 is about 25856.9900607167. The cubic root of 668583935 is about 874.4171072948.

The spelling of 668583935 in words is "six hundred sixty-eight million, five hundred eighty-three thousand, nine hundred thirty-five".