381701 has 4 divisors (see below), whose sum is σ = 404172. Its totient is φ = 359232.

The previous prime is 381697. The next prime is 381707. The reversal of 381701 is 107183.

381701 = 89² + 90² + ... + 122².

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

It can be written as a sum of positive squares in 2 ways, for example, as 160801 + 220900 = 401^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 381701 - 2² = 381697 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

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, 11210 + ... + 11243.

It is an arithmetic number, because the mean of its divisors is an integer number (101043).

2³⁸¹⁷⁰¹ is an apocalyptic number.

It is an amenable number.

381701 is a deficient number, since it is larger than the sum of its proper divisors (22471).

381701 is a wasteful number, since it uses less digits than its factorization.

381701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22470.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 381701 is about 617.8195529441. The cubic root of 381701 is about 72.5394790927.

Adding to 381701 its reverse (107183), we get a palindrome (488884).

The spelling of 381701 in words is "three hundred eighty-one thousand, seven hundred one".