383668 has 6 divisors (see below), whose sum is σ = 671426. Its totient is φ = 191832.

The previous prime is 383659. The next prime is 383681. The reversal of 383668 is 866383.

It can be written as a sum of positive squares in only one way, i.e., 338724 + 44944 = 582^2 + 212^2 .

It is a super-2 number, since 2×383668² = 294402268448, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47955 + ... + 47962.

2³⁸³⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

383668 is a deficient number, since it is larger than the sum of its proper divisors (287758).

383668 is a wasteful number, since it uses less digits than its factorization.

383668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95921 (or 95919 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 383668 is about 619.4093961186. The cubic root of 383668 is about 72.6638703111.

Adding to 383668 its product of digits (20736), we get a palindrome (404404).

The spelling of 383668 in words is "three hundred eighty-three thousand, six hundred sixty-eight".