8219404 has 6 divisors (see below), whose sum is σ = 14383964. Its totient is φ = 4109700.

The previous prime is 8219401. The next prime is 8219411. The reversal of 8219404 is 4049128.

It is a super-3 number, since 3×8219404³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8219401) 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 as a sum of consecutive naturals, namely, 1027422 + ... + 1027429.

Almost surely, 2^8219404 is an apocalyptic number.

It is an amenable number.

8219404 is a deficient number, since it is larger than the sum of its proper divisors (6164560).

8219404 is a wasteful number, since it uses less digits than its factorization.

8219404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054855 (or 2054853 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8219404 is about 2866.9502960463. The cubic root of 8219404 is about 201.8119021492.

The spelling of 8219404 in words is "eight million, two hundred nineteen thousand, four hundred four".