38001971 has 4 divisors (see below), whose sum is σ = 43430832. Its totient is φ = 32573112.

The previous prime is 38001961. The next prime is 38001973. The reversal of 38001971 is 17910083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38001971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38001973) 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, 2714420 + ... + 2714433.

It is an arithmetic number, because the mean of its divisors is an integer number (10857708).

Almost surely, 2^38001971 is an apocalyptic number.

38001971 is a deficient number, since it is larger than the sum of its proper divisors (5428861).

38001971 is an equidigital number, since it uses as much as digits as its factorization.

38001971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428860.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 38001971 is about 6164.5738701065. The cubic root of 38001971 is about 336.2033532579.

The spelling of 38001971 in words is "thirty-eight million, one thousand, nine hundred seventy-one".