38863987 has 8 divisors (see below), whose sum is σ = 42229760. Its totient is φ = 35630280.

The previous prime is 38863969. The next prime is 38863991. The reversal of 38863987 is 78936883.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38863987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38863907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32403 + ... + 33580.

It is an arithmetic number, because the mean of its divisors is an integer number (5278720).

Almost surely, 2^38863987 is an apocalyptic number.

38863987 is a deficient number, since it is larger than the sum of its proper divisors (3365773).

38863987 is a wasteful number, since it uses less digits than its factorization.

38863987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66033.

The product of its digits is 1741824, while the sum is 52.

The square root of 38863987 is about 6234.0987319740. The cubic root of 38863987 is about 338.7264553381.

The spelling of 38863987 in words is "thirty-eight million, eight hundred sixty-three thousand, nine hundred eighty-seven".