39916 has 12 divisors (see below), whose sum is σ = 74088. Its totient is φ = 18752.

The previous prime is 39901. The next prime is 39929. The reversal of 39916 is 61993.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226 + ... + 361.

It is an arithmetic number, because the mean of its divisors is an integer number (6174).

2³⁹⁹¹⁶ is an apocalyptic number.

It is an amenable number.

39916 is a deficient number, since it is larger than the sum of its proper divisors (34172).

39916 is a wasteful number, since it uses less digits than its factorization.

39916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 606 counting only the distinct ones).

The product of its digits is 1458, while the sum is 28.

The square root of 39916 is about 199.7898896341. The cubic root of 39916 is about 34.1755624929.

The spelling of 39916 in words is "thirty-nine thousand, nine hundred sixteen".