39868 has 6 divisors (see below), whose sum is σ = 69776. Its totient is φ = 19932.

The previous prime is 39863. The next prime is 39869. The reversal of 39868 is 86893.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39863) by changing a digit.

39868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4980 + ... + 4987.

2³⁹⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

39868 is a deficient number, since it is larger than the sum of its proper divisors (29908).

39868 is a wasteful number, since it uses less digits than its factorization.

39868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9971 (or 9969 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 39868 is about 199.6697272999. The cubic root of 39868 is about 34.1618580053.

The spelling of 39868 in words is "thirty-nine thousand, eight hundred sixty-eight".