404097807829 has 2 divisors, whose sum is σ = 404097807830. Its totient is φ = 404097807828.

The previous prime is 404097807803. The next prime is 404097807851. The reversal of 404097807829 is 928708790404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287269200625 + 116828607204 = 535975^2 + 341802^2 .

It is a cyclic number.

It is not a de Polignac number, because 404097807829 - 2⁵ = 404097807797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404097807629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202048903914 + 202048903915.

It is an arithmetic number, because the mean of its divisors is an integer number (202048903915).

Almost surely, 2^404097807829 is an apocalyptic number.

It is an amenable number.

404097807829 is a deficient number, since it is larger than the sum of its proper divisors (1).

404097807829 is an equidigital number, since it uses as much as digits as its factorization.

404097807829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8128512, while the sum is 58.

The spelling of 404097807829 in words is "four hundred four billion, ninety-seven million, eight hundred seven thousand, eight hundred twenty-nine".