8224779 has 4 divisors (see below), whose sum is σ = 10966376. Its totient is φ = 5483184.

The previous prime is 8224763. The next prime is 8224781. The reversal of 8224779 is 9774228.

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

It is not a de Polignac number, because 8224779 - 2⁴ = 8224763 is a prime.

It is an Ulam number.

It is a Duffinian number.

8224779 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8224709) 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, 1370794 + ... + 1370799.

It is an arithmetic number, because the mean of its divisors is an integer number (2741594).

Almost surely, 2^8224779 is an apocalyptic number.

8224779 is a deficient number, since it is larger than the sum of its proper divisors (2741597).

8224779 is a wasteful number, since it uses less digits than its factorization.

8224779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741596.

The product of its digits is 56448, while the sum is 39.

The square root of 8224779 is about 2867.8875500968. The cubic root of 8224779 is about 201.8558835461.

The spelling of 8224779 in words is "eight million, two hundred twenty-four thousand, seven hundred seventy-nine".