381727 has 4 divisors (see below), whose sum is σ = 394920. Its totient is φ = 368536.

The previous prime is 381713. The next prime is 381737. The reversal of 381727 is 727183.

It is a happy number.

381727 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381727 - 2¹¹ = 379679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381695 and 381704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6553 + ... + 6610.

It is an arithmetic number, because the mean of its divisors is an integer number (98730).

2³⁸¹⁷²⁷ is an apocalyptic number.

381727 is a deficient number, since it is larger than the sum of its proper divisors (13193).

381727 is a wasteful number, since it uses less digits than its factorization.

381727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13192.

The product of its digits is 2352, while the sum is 28.

The square root of 381727 is about 617.8405943283. The cubic root of 381727 is about 72.5411260918.

It can be divided in two parts, 3817 and 27, that added together give a square (3844 = 62²).

The spelling of 381727 in words is "three hundred eighty-one thousand, seven hundred twenty-seven".