381694 has 8 divisors (see below), whose sum is σ = 577080. Its totient is φ = 189336.

The previous prime is 381673. The next prime is 381697. The reversal of 381694 is 496183.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381697) 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 in 3 ways as a sum of consecutive naturals, for example, 409 + ... + 964.

It is an arithmetic number, because the mean of its divisors is an integer number (72135).

2³⁸¹⁶⁹⁴ is an apocalyptic number.

381694 is a deficient number, since it is larger than the sum of its proper divisors (195386).

381694 is a wasteful number, since it uses less digits than its factorization.

381694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514.

The product of its digits is 5184, while the sum is 31.

The square root of 381694 is about 617.8138878335. The cubic root of 381694 is about 72.5390356571.

The spelling of 381694 in words is "three hundred eighty-one thousand, six hundred ninety-four".