38947678 has 32 divisors (see below), whose sum is σ = 74400768. Its totient is φ = 14848800.

The previous prime is 38947669. The next prime is 38947681. The reversal of 38947678 is 87674983.

It is a happy number.

38947678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4548 + ... + 9928.

It is an arithmetic number, because the mean of its divisors is an integer number (2325024).

Almost surely, 2^38947678 is an apocalyptic number.

38947678 is a deficient number, since it is larger than the sum of its proper divisors (35453090).

38947678 is a wasteful number, since it uses less digits than its factorization.

38947678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448.

The product of its digits is 2032128, while the sum is 52.

The square root of 38947678 is about 6240.8074798058. The cubic root of 38947678 is about 338.9694226154.

The spelling of 38947678 in words is "thirty-eight million, nine hundred forty-seven thousand, six hundred seventy-eight".