4090999729 has 2 divisors, whose sum is σ = 4090999730. Its totient is φ = 4090999728.

The previous prime is 4090999631. The next prime is 4090999739. The reversal of 4090999729 is 9279990904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3297056400 + 793943329 = 57420^2 + 28177^2 .

It is a cyclic number.

It is not a de Polignac number, because 4090999729 - 2¹¹ = 4090997681 is a prime.

It is not a weakly prime, because it can be changed into another prime (4090999739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2045499864 + 2045499865.

It is an arithmetic number, because the mean of its divisors is an integer number (2045499865).

Almost surely, 2^4090999729 is an apocalyptic number.

It is an amenable number.

4090999729 is a deficient number, since it is larger than the sum of its proper divisors (1).

4090999729 is an equidigital number, since it uses as much as digits as its factorization.

4090999729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 58.

The square root of 4090999729 is about 63960.9234533086. The cubic root of 4090999729 is about 1599.3486579288.

The spelling of 4090999729 in words is "four billion, ninety million, nine hundred ninety-nine thousand, seven hundred twenty-nine".