38861986 has 8 divisors (see below), whose sum is σ = 58345884. Its totient is φ = 19413360.

The previous prime is 38861959. The next prime is 38862007. The reversal of 38861986 is 68916883.

It can be written as a sum of positive squares in 2 ways, for example, as 29975625 + 8886361 = 5475^2 + 2981^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5865 + ... + 10588.

Almost surely, 2^38861986 is an apocalyptic number.

38861986 is a deficient number, since it is larger than the sum of its proper divisors (19483898).

38861986 is a wasteful number, since it uses less digits than its factorization.

38861986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17636.

The product of its digits is 497664, while the sum is 49.

The square root of 38861986 is about 6233.9382415934. The cubic root of 38861986 is about 338.7206418732.

The spelling of 38861986 in words is "thirty-eight million, eight hundred sixty-one thousand, nine hundred eighty-six".