39969885 has 16 divisors (see below), whose sum is σ = 64149696. Its totient is φ = 21251328.

The previous prime is 39969827. The next prime is 39969893. The reversal of 39969885 is 58896993.

39969885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39969885 - 2¹⁰ = 39968861 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1102 + ... + 9008.

It is an arithmetic number, because the mean of its divisors is an integer number (4009356).

Almost surely, 2^39969885 is an apocalyptic number.

It is an amenable number.

39969885 is a deficient number, since it is larger than the sum of its proper divisors (24179811).

39969885 is a wasteful number, since it uses less digits than its factorization.

39969885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252.

The product of its digits is 4199040, while the sum is 57.

The square root of 39969885 is about 6322.1740722634. The cubic root of 39969885 is about 341.9093412447.

It can be divided in two parts, 3996988 and 5, that added together give a palindrome (3996993).

The spelling of 39969885 in words is "thirty-nine million, nine hundred sixty-nine thousand, eight hundred eighty-five".