7822229 has 4 divisors (see below), whose sum is σ = 7827840. Its totient is φ = 7816620.

The previous prime is 7822223. The next prime is 7822237. The reversal of 7822229 is 9222287.

7822229 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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 7822229 - 2¹² = 7818133 is a prime.

It is a super-2 number, since 2×7822229² = 122374533056882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7822195 and 7822204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7822223) 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, 1082 + ... + 4100.

It is an arithmetic number, because the mean of its divisors is an integer number (1956960).

Almost surely, 2^7822229 is an apocalyptic number.

It is an amenable number.

7822229 is a deficient number, since it is larger than the sum of its proper divisors (5611).

7822229 is a wasteful number, since it uses less digits than its factorization.

7822229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610.

The product of its digits is 8064, while the sum is 32.

The square root of 7822229 is about 2796.8248068122. The cubic root of 7822229 is about 198.5074643945.

The spelling of 7822229 in words is "seven million, eight hundred twenty-two thousand, two hundred twenty-nine".