38730587 has 4 divisors (see below), whose sum is σ = 44263536. Its totient is φ = 33197640.

The previous prime is 38730581. The next prime is 38730589. The reversal of 38730587 is 78503783.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38730587 - 2¹⁰ = 38729563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38730581) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2766464 + ... + 2766477.

It is an arithmetic number, because the mean of its divisors is an integer number (11065884).

Almost surely, 2^38730587 is an apocalyptic number.

38730587 is a deficient number, since it is larger than the sum of its proper divisors (5532949).

38730587 is an equidigital number, since it uses as much as digits as its factorization.

38730587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532948.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 38730587 is about 6223.3903139687. The cubic root of 38730587 is about 338.3384533887.

The spelling of 38730587 in words is "thirty-eight million, seven hundred thirty thousand, five hundred eighty-seven".