2998729 has 2 divisors, whose sum is σ = 2998730. Its totient is φ = 2998728.

The previous prime is 2998693. The next prime is 2998747. The reversal of 2998729 is 9278992.

2998729 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., 2975625 + 23104 = 1725^2 + 152^2 .

It is a cyclic number.

It is not a de Polignac number, because 2998729 - 2⁷ = 2998601 is a prime.

It is an Ulam number.

2998729 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2998759) 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, 1499364 + 1499365.

It is an arithmetic number, because the mean of its divisors is an integer number (1499365).

2^2998729 is an apocalyptic number.

It is an amenable number.

2998729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2998729 is an equidigital number, since it uses as much as digits as its factorization.

2998729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 46.

The square root of 2998729 is about 1731.6838626031. The cubic root of 2998729 is about 144.2045863848.

The spelling of 2998729 in words is "two million, nine hundred ninety-eight thousand, seven hundred twenty-nine".