38893971 has 8 divisors (see below), whose sum is σ = 52026624. Its totient is φ = 25845320.

The previous prime is 38893951. The next prime is 38893999. The reversal of 38893971 is 17939883.

38893971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38893971 - 2²¹ = 36796819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38893971.

It is not an unprimeable number, because it can be changed into a prime (38893951) 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 7 ways as a sum of consecutive naturals, for example, 19911 + ... + 21776.

It is an arithmetic number, because the mean of its divisors is an integer number (6503328).

Almost surely, 2^38893971 is an apocalyptic number.

38893971 is a deficient number, since it is larger than the sum of its proper divisors (13132653).

38893971 is a wasteful number, since it uses less digits than its factorization.

38893971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42001.

The product of its digits is 326592, while the sum is 48.

The square root of 38893971 is about 6236.5031067097. The cubic root of 38893971 is about 338.8135433599.

The spelling of 38893971 in words is "thirty-eight million, eight hundred ninety-three thousand, nine hundred seventy-one".