380819 has 2 divisors, whose sum is σ = 380820. Its totient is φ = 380818.

The previous prime is 380803. The next prime is 380837. The reversal of 380819 is 918083.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380819 - 2⁴ = 380803 is a prime.

It is a super-2 number, since 2×380819² = 290046221522, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 380791 and 380800.

It is not a weakly prime, because it can be changed into another prime (380839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190409 + 190410.

It is an arithmetic number, because the mean of its divisors is an integer number (190410).

2³⁸⁰⁸¹⁹ is an apocalyptic number.

380819 is a deficient number, since it is larger than the sum of its proper divisors (1).

380819 is an equidigital number, since it uses as much as digits as its factorization.

380819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 380819 is about 617.1053394681. The cubic root of 380819 is about 72.4835634559.

The spelling of 380819 in words is "three hundred eighty thousand, eight hundred nineteen".