38871887 has 8 divisors (see below), whose sum is σ = 39357360. Its totient is φ = 38389120.

The previous prime is 38871883. The next prime is 38871901. The reversal of 38871887 is 78817883.

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 38871887 - 2² = 38871883 is a prime.

It is a super-2 number, since 2×38871887² = 3022047197881538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38871881) 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, 46937 + ... + 47757.

It is an arithmetic number, because the mean of its divisors is an integer number (4919670).

Almost surely, 2^38871887 is an apocalyptic number.

38871887 is a deficient number, since it is larger than the sum of its proper divisors (485473).

38871887 is a wasteful number, since it uses less digits than its factorization.

38871887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353.

The product of its digits is 602112, while the sum is 50.

The square root of 38871887 is about 6234.7323118158. The cubic root of 38871887 is about 338.7494050996.

The spelling of 38871887 in words is "thirty-eight million, eight hundred seventy-one thousand, eight hundred eighty-seven".