2069729 has 2 divisors, whose sum is σ = 2069730. Its totient is φ = 2069728.

The previous prime is 2069723. The next prime is 2069737. The reversal of 2069729 is 9279602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 677329 = 1180^2 + 823^2 .

It is a cyclic number.

It is not a de Polignac number, because 2069729 - 2⁴ = 2069713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2069723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034864 + 1034865.

It is an arithmetic number, because the mean of its divisors is an integer number (1034865).

2^2069729 is an apocalyptic number.

It is an amenable number.

2069729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2069729 is an equidigital number, since it uses as much as digits as its factorization.

2069729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 2069729 is about 1438.6552749008. The cubic root of 2069729 is about 127.4396279603.

The spelling of 2069729 in words is "two million, sixty-nine thousand, seven hundred twenty-nine".