38686087 has 16 divisors (see below), whose sum is σ = 43973280. Its totient is φ = 33712000.

The previous prime is 38686073. The next prime is 38686091. The reversal of 38686087 is 78068683.

38686087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 38686087 - 2¹¹ = 38684039 is a prime.

It is a super-2 number, since 2×38686087² = 2993226654743138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38686007) 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, 54837 + ... + 55537.

It is an arithmetic number, because the mean of its divisors is an integer number (2748330).

Almost surely, 2^38686087 is an apocalyptic number.

38686087 is a deficient number, since it is larger than the sum of its proper divisors (5287193).

38686087 is a wasteful number, since it uses less digits than its factorization.

38686087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 38686087 is about 6219.8140647450. The cubic root of 38686087 is about 338.2088243082.

The spelling of 38686087 in words is "thirty-eight million, six hundred eighty-six thousand, eighty-seven".