8219479 has 4 divisors (see below), whose sum is σ = 8225560. Its totient is φ = 8213400.

The previous prime is 8219459. The next prime is 8219509. The reversal of 8219479 is 9749128.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8219479 - 2⁵ = 8219447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8219429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4 + ... + 4054.

It is an arithmetic number, because the mean of its divisors is an integer number (2056390).

Almost surely, 2^8219479 is an apocalyptic number.

8219479 is a deficient number, since it is larger than the sum of its proper divisors (6081).

8219479 is a wasteful number, since it uses less digits than its factorization.

8219479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080.

The product of its digits is 36288, while the sum is 40.

The square root of 8219479 is about 2866.9633761177. The cubic root of 8219479 is about 201.8125159750.

The spelling of 8219479 in words is "eight million, two hundred nineteen thousand, four hundred seventy-nine".