39685652 has 12 divisors (see below), whose sum is σ = 69494880. Its totient is φ = 19829976.

The previous prime is 39685651. The next prime is 39685687. The reversal of 39685652 is 25658693.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39685651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8393 + ... + 12239.

It is an arithmetic number, because the mean of its divisors is an integer number (5791240).

Almost surely, 2^39685652 is an apocalyptic number.

It is an amenable number.

39685652 is a deficient number, since it is larger than the sum of its proper divisors (29809228).

39685652 is a wasteful number, since it uses less digits than its factorization.

39685652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430 (or 6428 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 39685652 is about 6299.6549111836. The cubic root of 39685652 is about 341.0969530219.

The spelling of 39685652 in words is "thirty-nine million, six hundred eighty-five thousand, six hundred fifty-two".