2922729 has 8 divisors (see below), whose sum is σ = 3905760. Its totient is φ = 1944096.

The previous prime is 2922721. The next prime is 2922737. The reversal of 2922729 is 9272292.

2922729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2922721) and next prime (2922737).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2922729 - 2³ = 2922721 is a prime.

It is a d-powerful number, because it can be written as 2⁴ + 9 + 2⁸ + 2¹⁰ + 7⁷ + 2²¹ + 9³ .

It is a Curzon number.

2922729 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2922729.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2922721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062 + ... + 2640.

It is an arithmetic number, because the mean of its divisors is an integer number (488220).

2^2922729 is an apocalyptic number.

It is an amenable number.

2922729 is a deficient number, since it is larger than the sum of its proper divisors (983031).

2922729 is a wasteful number, since it uses less digits than its factorization.

2922729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199.

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

The square root of 2922729 is about 1709.5990758070. The cubic root of 2922729 is about 142.9759034821.

The spelling of 2922729 in words is "two million, nine hundred twenty-two thousand, seven hundred twenty-nine".