39785652 has 18 divisors (see below), whose sum is σ = 100569378. Its totient is φ = 13261872.

The previous prime is 39785633. The next prime is 39785663. The reversal of 39785652 is 25658793.

It is a happy number.

39785652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 22695696 + 17089956 = 4764^2 + 4134^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 39785598 and 39785607.

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 5 ways as a sum of consecutive naturals, for example, 552543 + ... + 552614.

Almost surely, 2^39785652 is an apocalyptic number.

It is an amenable number.

39785652 is an abundant number, since it is smaller than the sum of its proper divisors (60783726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39785652 is a wasteful number, since it uses less digits than its factorization.

39785652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105167 (or 1105162 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 39785652 is about 6307.5868602818. The cubic root of 39785652 is about 341.3832116882.

The spelling of 39785652 in words is "thirty-nine million, seven hundred eighty-five thousand, six hundred fifty-two".