1396000729 has 2 divisors, whose sum is σ = 1396000730. Its totient is φ = 1396000728.

The previous prime is 1396000657. The next prime is 1396000733. The reversal of 1396000729 is 9270006931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1105230025 + 290770704 = 33245^2 + 17052^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396000729 - 2⁷ = 1396000601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1396100729) 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 as a sum of consecutive naturals, namely, 698000364 + 698000365.

It is an arithmetic number, because the mean of its divisors is an integer number (698000365).

Almost surely, 2^1396000729 is an apocalyptic number.

It is an amenable number.

1396000729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396000729 is an equidigital number, since it uses as much as digits as its factorization.

1396000729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 1396000729 is about 37363.0931401564. The cubic root of 1396000729 is about 1117.6227022869.

The spelling of 1396000729 in words is "one billion, three hundred ninety-six million, seven hundred twenty-nine", and thus it is an aban number.