668823883 has 48 divisors (see below), whose sum is σ = 895228320. Its totient is φ = 493807104.

The previous prime is 668823863. The next prime is 668823889. The reversal of 668823883 is 388328866.

It is not a de Polignac number, because 668823883 - 2¹³ = 668815691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 668823883.

It is not an unprimeable number, because it can be changed into a prime (668823889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 883141 + ... + 883897.

It is an arithmetic number, because the mean of its divisors is an integer number (18650590).

Almost surely, 2^668823883 is an apocalyptic number.

668823883 is a deficient number, since it is larger than the sum of its proper divisors (226404437).

668823883 is a wasteful number, since it uses less digits than its factorization.

668823883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 869 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 52.

The square root of 668823883 is about 25861.6295503590. The cubic root of 668823883 is about 874.5217012632.

The spelling of 668823883 in words is "six hundred sixty-eight million, eight hundred twenty-three thousand, eight hundred eighty-three".