380813 has 4 divisors (see below), whose sum is σ = 384480. Its totient is φ = 377148.

The previous prime is 380803. The next prime is 380819. The reversal of 380813 is 318083.

Added to its reverse (318083) it gives a square (698896 = 836²).

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318083 = 179 ⋅1777.

It is a cyclic number.

It is not a de Polignac number, because 380813 - 2⁴ = 380797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380819) 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, 1673 + ... + 1886.

It is an arithmetic number, because the mean of its divisors is an integer number (96120).

2³⁸⁰⁸¹³ is an apocalyptic number.

It is an amenable number.

380813 is a deficient number, since it is larger than the sum of its proper divisors (3667).

380813 is a wasteful number, since it uses less digits than its factorization.

380813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666.

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

The square root of 380813 is about 617.1004780423. The cubic root of 380813 is about 72.4831827819.

Adding to 380813 its reverse (318083), we get a palindrome (698896).

The spelling of 380813 in words is "three hundred eighty thousand, eight hundred thirteen".