381847461 has 8 divisors (see below), whose sum is σ = 509236224. Its totient is φ = 254511840.

The previous prime is 381847409. The next prime is 381847463. The reversal of 381847461 is 164748183.

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

It is not a de Polignac number, because 381847461 - 2⁶ = 381847397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381847463) 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, 8665 + ... + 28961.

It is an arithmetic number, because the mean of its divisors is an integer number (63654528).

Almost surely, 2^381847461 is an apocalyptic number.

It is an amenable number.

381847461 is a deficient number, since it is larger than the sum of its proper divisors (127388763).

381847461 is a wasteful number, since it uses less digits than its factorization.

381847461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26571.

The product of its digits is 129024, while the sum is 42.

The square root of 381847461 is about 19540.9176089558. The cubic root of 381847461 is about 725.4875585304.

The spelling of 381847461 in words is "three hundred eighty-one million, eight hundred forty-seven thousand, four hundred sixty-one".