2945729 has 4 divisors (see below), whose sum is σ = 2950080. Its totient is φ = 2941380.

The previous prime is 2945711. The next prime is 2945731. The reversal of 2945729 is 9275492.

2945729 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 2945729 - 2⁸ = 2945473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2945692 and 2945701.

It is not an unprimeable number, because it can be changed into a prime (2945749) 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 3 ways as a sum of consecutive naturals, for example, 917 + ... + 2594.

It is an arithmetic number, because the mean of its divisors is an integer number (737520).

2^2945729 is an apocalyptic number.

It is an amenable number.

2945729 is a deficient number, since it is larger than the sum of its proper divisors (4351).

2945729 is an equidigital number, since it uses as much as digits as its factorization.

2945729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350.

The product of its digits is 45360, while the sum is 38.

The square root of 2945729 is about 1716.3126172117. The cubic root of 2945729 is about 143.3499668215.

The spelling of 2945729 in words is "two million, nine hundred forty-five thousand, seven hundred twenty-nine".