3820219 has 4 divisors (see below), whose sum is σ = 4114096. Its totient is φ = 3526344.

The previous prime is 3820181. The next prime is 3820237. The reversal of 3820219 is 9120283.

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

It is a cyclic number.

It is not a de Polignac number, because 3820219 - 2⁹ = 3819707 is a prime.

It is a super-2 number, since 2×3820219² = 29188146415922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3820193 and 3820202.

It is not an unprimeable number, because it can be changed into a prime (3820259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146919 + ... + 146944.

It is an arithmetic number, because the mean of its divisors is an integer number (1028524).

Almost surely, 2^3820219 is an apocalyptic number.

3820219 is a deficient number, since it is larger than the sum of its proper divisors (293877).

3820219 is a wasteful number, since it uses less digits than its factorization.

3820219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293876.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3820219 is about 1954.5380528401. The cubic root of 3820219 is about 156.3253537338.

The spelling of 3820219 in words is "three million, eight hundred twenty thousand, two hundred nineteen".