38861109 has 12 divisors (see below), whose sum is σ = 64151776. Its totient is φ = 22206312.

The previous prime is 38861107. The next prime is 38861113. The reversal of 38861109 is 90116883.

38861109 is a `hidden beast` number, since 38 + 8 + 611 + 0 + 9 = 666.

38861109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38861109 - 2¹ = 38861107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38861101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308359 + ... + 308484.

Almost surely, 2^38861109 is an apocalyptic number.

It is an amenable number.

38861109 is a deficient number, since it is larger than the sum of its proper divisors (25290667).

38861109 is a wasteful number, since it uses less digits than its factorization.

38861109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616856 (or 616853 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 38861109 is about 6233.8679004291. The cubic root of 38861109 is about 338.7180938800.

The spelling of 38861109 in words is "thirty-eight million, eight hundred sixty-one thousand, one hundred nine".