8221419 has 24 divisors (see below), whose sum is σ = 12859392. Its totient is φ = 5239080.

The previous prime is 8221403. The next prime is 8221427. The reversal of 8221419 is 9141228.

It is not a de Polignac number, because 8221419 - 2⁴ = 8221403 is a prime.

It is a super-2 number, since 2×8221419² = 135183460747122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 8221392 and 8221401.

It is not an unprimeable number, because it can be changed into a prime (8221439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4854 + ... + 6324.

It is an arithmetic number, because the mean of its divisors is an integer number (535808).

Almost surely, 2^8221419 is an apocalyptic number.

8221419 is a deficient number, since it is larger than the sum of its proper divisors (4637973).

8221419 is a wasteful number, since it uses less digits than its factorization.

8221419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509 (or 1497 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 8221419 is about 2867.3016932301. The cubic root of 8221419 is about 201.8283923050.

The spelling of 8221419 in words is "eight million, two hundred twenty-one thousand, four hundred nineteen".