381706862 has 4 divisors (see below), whose sum is σ = 572560296. Its totient is φ = 190853430.

The previous prime is 381706847. The next prime is 381706867. The reversal of 381706862 is 268607183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 268607183 = 13 ⋅20662091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381706867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95426714 + ... + 95426717.

It is an arithmetic number, because the mean of its divisors is an integer number (143140074).

Almost surely, 2^381706862 is an apocalyptic number.

381706862 is a deficient number, since it is larger than the sum of its proper divisors (190853434).

381706862 is a wasteful number, since it uses less digits than its factorization.

381706862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190853433.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 381706862 is about 19537.3197240563. The cubic root of 381706862 is about 725.3985043420.

The spelling of 381706862 in words is "three hundred eighty-one million, seven hundred six thousand, eight hundred sixty-two".