6222729 has 4 divisors (see below), whose sum is σ = 8296976. Its totient is φ = 4148484.

The previous prime is 6222707. The next prime is 6222743. The reversal of 6222729 is 9272226.

6222729 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.

It is not a de Polignac number, because 6222729 - 2⁸ = 6222473 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6222696 and 6222705.

It is not an unprimeable number, because it can be changed into a prime (6222829) 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, 1037119 + ... + 1037124.

It is an arithmetic number, because the mean of its divisors is an integer number (2074244).

Almost surely, 2^6222729 is an apocalyptic number.

It is an amenable number.

6222729 is a deficient number, since it is larger than the sum of its proper divisors (2074247).

6222729 is a wasteful number, since it uses less digits than its factorization.

6222729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074246.

The product of its digits is 6048, while the sum is 30.

The square root of 6222729 is about 2494.5398373247. The cubic root of 6222729 is about 183.9332717236.

It can be divided in two parts, 62 and 22729, that added together give a triangular number (22791 = T₂₁₃).

The spelling of 6222729 in words is "six million, two hundred twenty-two thousand, seven hundred twenty-nine".