404627263 has 2 divisors, whose sum is σ = 404627264. Its totient is φ = 404627262.

The previous prime is 404627261. The next prime is 404627299. The reversal of 404627263 is 362726404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404627263 - 2¹ = 404627261 is a prime.

Together with 404627261, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404627261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202313631 + 202313632.

It is an arithmetic number, because the mean of its divisors is an integer number (202313632).

Almost surely, 2^404627263 is an apocalyptic number.

404627263 is a deficient number, since it is larger than the sum of its proper divisors (1).

404627263 is an equidigital number, since it uses as much as digits as its factorization.

404627263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 404627263 is about 20115.3489405479. The cubic root of 404627263 is about 739.6365776965.

The spelling of 404627263 in words is "four hundred four million, six hundred twenty-seven thousand, two hundred sixty-three".