38021971 has 8 divisors (see below), whose sum is σ = 41618864. Its totient is φ = 34521120.

The previous prime is 38021953. The next prime is 38021981. The reversal of 38021971 is 17912083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38021971 - 2⁵ = 38021939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38021941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23181 + ... + 24766.

It is an arithmetic number, because the mean of its divisors is an integer number (5202358).

Almost surely, 2^38021971 is an apocalyptic number.

38021971 is a deficient number, since it is larger than the sum of its proper divisors (3596893).

38021971 is a wasteful number, since it uses less digits than its factorization.

38021971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48021.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 38021971 is about 6166.1958288721. The cubic root of 38021971 is about 336.2623228994.

The spelling of 38021971 in words is "thirty-eight million, twenty-one thousand, nine hundred seventy-one".