1679011729 has 2 divisors, whose sum is σ = 1679011730. Its totient is φ = 1679011728.

The previous prime is 1679011717. The next prime is 1679011769. The reversal of 1679011729 is 9271109761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1571329600 + 107682129 = 39640^2 + 10377^2 .

It is an emirp because it is prime and its reverse (9271109761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1679011729 - 2¹¹ = 1679009681 is a prime.

It is a super-2 number, since 2×1679011729² = 5638160772239138882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1679011769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839505864 + 839505865.

It is an arithmetic number, because the mean of its divisors is an integer number (839505865).

Almost surely, 2^1679011729 is an apocalyptic number.

It is an amenable number.

1679011729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1679011729 is an equidigital number, since it uses as much as digits as its factorization.

1679011729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 43.

The square root of 1679011729 is about 40975.7456185974. The cubic root of 1679011729 is about 1188.5512414290.

The spelling of 1679011729 in words is "one billion, six hundred seventy-nine million, eleven thousand, seven hundred twenty-nine".