38671947 has 24 divisors (see below), whose sum is σ = 58616064. Its totient is φ = 24521904.

The previous prime is 38671937. The next prime is 38671951. The reversal of 38671947 is 74917683.

It is not a de Polignac number, because 38671947 - 2⁶ = 38671883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38671937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46578 + ... + 47400.

It is an arithmetic number, because the mean of its divisors is an integer number (2442336).

Almost surely, 2^38671947 is an apocalyptic number.

38671947 is a deficient number, since it is larger than the sum of its proper divisors (19944117).

38671947 is a wasteful number, since it uses less digits than its factorization.

38671947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1076 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 38671947 is about 6218.6772709315. The cubic root of 38671947 is about 338.1676134930.

The spelling of 38671947 in words is "thirty-eight million, six hundred seventy-one thousand, nine hundred forty-seven".