2729229 has 4 divisors (see below), whose sum is σ = 3638976. Its totient is φ = 1819484.

The previous prime is 2729227. The next prime is 2729239. The reversal of 2729229 is 9229272.

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 a cyclic number.

It is not a de Polignac number, because 2729229 - 2¹ = 2729227 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2729229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2729227) 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, 454869 + ... + 454874.

It is an arithmetic number, because the mean of its divisors is an integer number (909744).

2^2729229 is an apocalyptic number.

It is an amenable number.

2729229 is a deficient number, since it is larger than the sum of its proper divisors (909747).

2729229 is an equidigital number, since it uses as much as digits as its factorization.

2729229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909746.

The product of its digits is 9072, while the sum is 33.

The square root of 2729229 is about 1652.0378324966. The cubic root of 2729229 is about 139.7483404127.

The spelling of 2729229 in words is "two million, seven hundred twenty-nine thousand, two hundred twenty-nine".