803381 has 4 divisors (see below), whose sum is σ = 825132. Its totient is φ = 781632.

The previous prime is 803359. The next prime is 803389. The reversal of 803381 is 183308.

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 483025 + 320356 = 695^2 + 566^2 .

It is a cyclic number.

It is not a de Polignac number, because 803381 - 2¹⁰ = 802357 is a prime.

It is a super-2 number, since 2×803381² = 1290842062322, which contains 22 as substring.

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 (803389) 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, 10820 + ... + 10893.

It is an arithmetic number, because the mean of its divisors is an integer number (206283).

2⁸⁰³³⁸¹ is an apocalyptic number.

It is an amenable number.

803381 is a deficient number, since it is larger than the sum of its proper divisors (21751).

803381 is a wasteful number, since it uses less digits than its factorization.

803381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21750.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 803381 is about 896.3152347249. The cubic root of 803381 is about 92.9623696372.

Adding to 803381 its reverse (183308), we get a palindrome (986689).

It can be divided in two parts, 80 and 3381, that multiplied together give a triangular number (270480 = T₇₃₅).

The spelling of 803381 in words is "eight hundred three thousand, three hundred eighty-one".