38665685 has 8 divisors (see below), whose sum is σ = 46849920. Its totient is φ = 30631824.

The previous prime is 38665661. The next prime is 38665699. The reversal of 38665685 is 58656683.

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

It is a cyclic number.

It is not a de Polignac number, because 38665685 - 2⁶ = 38665621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37025 + ... + 38054.

It is an arithmetic number, because the mean of its divisors is an integer number (5856240).

Almost surely, 2^38665685 is an apocalyptic number.

It is an amenable number.

38665685 is a deficient number, since it is larger than the sum of its proper divisors (8184235).

38665685 is a wasteful number, since it uses less digits than its factorization.

38665685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75187.

The product of its digits is 1036800, while the sum is 47.

The square root of 38665685 is about 6218.1737672728. The cubic root of 38665685 is about 338.1493597797.

The spelling of 38665685 in words is "thirty-eight million, six hundred sixty-five thousand, six hundred eighty-five".