404660629 has 2 divisors, whose sum is σ = 404660630. Its totient is φ = 404660628.

The previous prime is 404660621. The next prime is 404660657. The reversal of 404660629 is 926066404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403929604 + 731025 = 20098^2 + 855^2 .

It is a cyclic number.

It is not a de Polignac number, because 404660629 - 2³ = 404660621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404660621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202330314 + 202330315.

It is an arithmetic number, because the mean of its divisors is an integer number (202330315).

Almost surely, 2^404660629 is an apocalyptic number.

It is an amenable number.

404660629 is a deficient number, since it is larger than the sum of its proper divisors (1).

404660629 is an equidigital number, since it uses as much as digits as its factorization.

404660629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 404660629 is about 20116.1782901226. The cubic root of 404660629 is about 739.6569075474.

The spelling of 404660629 in words is "four hundred four million, six hundred sixty thousand, six hundred twenty-nine".