38973871 has 4 divisors (see below), whose sum is σ = 39017200. Its totient is φ = 38930544.

The previous prime is 38973863. The next prime is 38973881. The reversal of 38973871 is 17837983.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17837983 = 1367 ⋅13049.

It is a cyclic number.

It is not a de Polignac number, because 38973871 - 2³ = 38973863 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 (38973881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20286 + ... + 22123.

It is an arithmetic number, because the mean of its divisors is an integer number (9754300).

Almost surely, 2^38973871 is an apocalyptic number.

38973871 is a deficient number, since it is larger than the sum of its proper divisors (43329).

38973871 is an equidigital number, since it uses as much as digits as its factorization.

38973871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43328.

The product of its digits is 254016, while the sum is 46.

The square root of 38973871 is about 6242.9056536200. The cubic root of 38973871 is about 339.0453932247.

The spelling of 38973871 in words is "thirty-eight million, nine hundred seventy-three thousand, eight hundred seventy-one".