381847071 has 8 divisors (see below), whose sum is σ = 509254144. Its totient is φ = 254502360.

The previous prime is 381847049. The next prime is 381847097. The reversal of 381847071 is 170748183.

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

It is not a de Polignac number, because 381847071 - 2¹³ = 381838879 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 (381847021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320 + ... + 27666.

It is an arithmetic number, because the mean of its divisors is an integer number (63656768).

Almost surely, 2^381847071 is an apocalyptic number.

381847071 is a deficient number, since it is larger than the sum of its proper divisors (127407073).

381847071 is a wasteful number, since it uses less digits than its factorization.

381847071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31181.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 381847071 is about 19540.9076298927. The cubic root of 381847071 is about 725.4873115380.

The spelling of 381847071 in words is "three hundred eighty-one million, eight hundred forty-seven thousand, seventy-one".