39689223 has 16 divisors (see below), whose sum is σ = 61472256. Its totient is φ = 22307040.

The previous prime is 39689219. The next prime is 39689239. The reversal of 39689223 is 32298693.

39689223 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 39689223 - 2² = 39689219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39689723) 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 15 ways as a sum of consecutive naturals, for example, 14211 + ... + 16772.

It is an arithmetic number, because the mean of its divisors is an integer number (3842016).

Almost surely, 2^39689223 is an apocalyptic number.

39689223 is a deficient number, since it is larger than the sum of its proper divisors (21783033).

39689223 is a wasteful number, since it uses less digits than its factorization.

39689223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31054.

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

The square root of 39689223 is about 6299.9383330315. The cubic root of 39689223 is about 341.1071835932.

The spelling of 39689223 in words is "thirty-nine million, six hundred eighty-nine thousand, two hundred twenty-three".