38689986 has 16 divisors (see below), whose sum is σ = 78091200. Its totient is φ = 12778128.

The previous prime is 38689951. The next prime is 38689997. The reversal of 38689986 is 68998683.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28926 + ... + 30233.

It is an arithmetic number, because the mean of its divisors is an integer number (4880700).

Almost surely, 2^38689986 is an apocalyptic number.

38689986 is an abundant number, since it is smaller than the sum of its proper divisors (39401214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38689986 is a wasteful number, since it uses less digits than its factorization.

38689986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59273.

The product of its digits is 4478976, while the sum is 57.

The square root of 38689986 is about 6220.1274906548. The cubic root of 38689986 is about 338.2201861182.

The spelling of 38689986 in words is "thirty-eight million, six hundred eighty-nine thousand, nine hundred eighty-six".