108866729 has 2 divisors, whose sum is σ = 108866730. Its totient is φ = 108866728.

The previous prime is 108866683. The next prime is 108866743. The reversal of 108866729 is 927668801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108722329 + 144400 = 10427^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 108866729 - 2⁸ = 108866473 is a prime.

It is not a weakly prime, because it can be changed into another prime (108866749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54433364 + 54433365.

It is an arithmetic number, because the mean of its divisors is an integer number (54433365).

Almost surely, 2^108866729 is an apocalyptic number.

It is an amenable number.

108866729 is a deficient number, since it is larger than the sum of its proper divisors (1).

108866729 is an equidigital number, since it uses as much as digits as its factorization.

108866729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 108866729 is about 10433.9220334446. The cubic root of 108866729 is about 477.4908547904.

The spelling of 108866729 in words is "one hundred eight million, eight hundred sixty-six thousand, seven hundred twenty-nine".