1068447729 has 12 divisors (see below), whose sum is σ = 1503523536. Its totient is φ = 674808408.

The previous prime is 1068447701. The next prime is 1068447733. The reversal of 1068447729 is 9277448601.

It is not a de Polignac number, because 1068447729 - 2⁸ = 1068447473 is a prime.

It is a super-2 number, since 2×1068447729² = 2283161099210514882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068447769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 492199 + ... + 494364.

It is an arithmetic number, because the mean of its divisors is an integer number (125293628).

Almost surely, 2^1068447729 is an apocalyptic number.

1068447729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1068447729 is a deficient number, since it is larger than the sum of its proper divisors (435075807).

1068447729 is an equidigital number, since it uses as much as digits as its factorization.

1068447729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986604 (or 986585 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 1068447729 is about 32687.1187014090. The cubic root of 1068447729 is about 1022.3142789921.

The spelling of 1068447729 in words is "one billion, sixty-eight million, four hundred forty-seven thousand, seven hundred twenty-nine".