2428729 has 2 divisors, whose sum is σ = 2428730. Its totient is φ = 2428728.

The previous prime is 2428711. The next prime is 2428733. The reversal of 2428729 is 9278242.

2428729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1863225 + 565504 = 1365^2 + 752^2 .

It is a cyclic number.

It is not a de Polignac number, because 2428729 - 2¹⁷ = 2297657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2428694 and 2428703.

It is not a weakly prime, because it can be changed into another prime (2428529) 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 as a sum of consecutive naturals, namely, 1214364 + 1214365.

It is an arithmetic number, because the mean of its divisors is an integer number (1214365).

2^2428729 is an apocalyptic number.

It is an amenable number.

2428729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2428729 is an equidigital number, since it uses as much as digits as its factorization.

2428729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 2428729 is about 1558.4380000501. The cubic root of 2428729 is about 134.4186985334.

The spelling of 2428729 in words is "two million, four hundred twenty-eight thousand, seven hundred twenty-nine".