39986043 has 8 divisors (see below), whose sum is σ = 53514000. Its totient is φ = 26557728.

The previous prime is 39986033. The next prime is 39986059. The reversal of 39986043 is 34068993.

39986043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39986043 - 2⁴ = 39986027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39985986 and 39986004.

It is not an unprimeable number, because it can be changed into a prime (39986033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23968 + ... + 25581.

It is an arithmetic number, because the mean of its divisors is an integer number (6689250).

Almost surely, 2^39986043 is an apocalyptic number.

39986043 is a deficient number, since it is larger than the sum of its proper divisors (13527957).

39986043 is a wasteful number, since it uses less digits than its factorization.

39986043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49821.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 39986043 is about 6323.4518263366. The cubic root of 39986043 is about 341.9554078176.

The spelling of 39986043 in words is "thirty-nine million, nine hundred eighty-six thousand, forty-three".