2080729 has 4 divisors (see below), whose sum is σ = 2377984. Its totient is φ = 1783476.

The previous prime is 2080723. The next prime is 2080759. The reversal of 2080729 is 9270802.

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 2080729 - 2¹⁷ = 1949657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2080697 and 2080706.

It is not an unprimeable number, because it can be changed into a prime (2080723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148617 + ... + 148630.

It is an arithmetic number, because the mean of its divisors is an integer number (594496).

2^2080729 is an apocalyptic number.

It is an amenable number.

2080729 is a deficient number, since it is larger than the sum of its proper divisors (297255).

2080729 is an equidigital number, since it uses as much as digits as its factorization.

2080729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297254.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2080729 is about 1442.4732233217. The cubic root of 2080729 is about 127.6649972021.

It can be divided in two parts, 2080 and 729, that added together give a square (2809 = 53²).

The spelling of 2080729 in words is "two million, eighty thousand, seven hundred twenty-nine".