3421819 has 4 divisors (see below), whose sum is σ = 3505320. Its totient is φ = 3338320.

The previous prime is 3421813. The next prime is 3421853. The reversal of 3421819 is 9181243.

It is a happy number.

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 3421819 - 2²¹ = 1324667 is a prime.

It is a super-2 number, since 2×3421819² = 23417690537522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3421813) 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, 41689 + ... + 41770.

It is an arithmetic number, because the mean of its divisors is an integer number (876330).

Almost surely, 2^3421819 is an apocalyptic number.

3421819 is a deficient number, since it is larger than the sum of its proper divisors (83501).

3421819 is an equidigital number, since it uses as much as digits as its factorization.

3421819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83500.

The product of its digits is 1728, while the sum is 28.

The square root of 3421819 is about 1849.8159367894. The cubic root of 3421819 is about 150.6904319636.

The spelling of 3421819 in words is "three million, four hundred twenty-one thousand, eight hundred nineteen".