3782819 has 2 divisors, whose sum is σ = 3782820. Its totient is φ = 3782818.

The previous prime is 3782813. The next prime is 3782869. The reversal of 3782819 is 9182873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3782819 - 2⁴ = 3782803 is a prime.

It is a super-2 number, since 2×3782819² = 28619439173522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3782813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1891409 + 1891410.

It is an arithmetic number, because the mean of its divisors is an integer number (1891410).

Almost surely, 2^3782819 is an apocalyptic number.

3782819 is a deficient number, since it is larger than the sum of its proper divisors (1).

3782819 is an equidigital number, since it uses as much as digits as its factorization.

3782819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 3782819 is about 1944.9470429809. The cubic root of 3782819 is about 155.8135373508.

The spelling of 3782819 in words is "three million, seven hundred eighty-two thousand, eight hundred nineteen".