38278971 has 12 divisors (see below), whose sum is σ = 55603080. Its totient is φ = 25375680.

The previous prime is 38278963. The next prime is 38278973. The reversal of 38278971 is 17987283.

It is not a de Polignac number, because 38278971 - 2³ = 38278963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38278973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10270 + ... + 13491.

It is an arithmetic number, because the mean of its divisors is an integer number (4633590).

Almost surely, 2^38278971 is an apocalyptic number.

38278971 is a deficient number, since it is larger than the sum of its proper divisors (17324109).

38278971 is a wasteful number, since it uses less digits than its factorization.

38278971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23946 (or 23943 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 38278971 is about 6187.0001616292. Note that the first 3 decimals coincide. The cubic root of 38278971 is about 337.0182492972.

The spelling of 38278971 in words is "thirty-eight million, two hundred seventy-eight thousand, nine hundred seventy-one".