404957347 has 2 divisors, whose sum is σ = 404957348. Its totient is φ = 404957346.

The previous prime is 404957339. The next prime is 404957383. The reversal of 404957347 is 743759404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404957347 - 2³ = 404957339 is a prime.

It is not a weakly prime, because it can be changed into another prime (404952347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202478673 + 202478674.

It is an arithmetic number, because the mean of its divisors is an integer number (202478674).

Almost surely, 2^404957347 is an apocalyptic number.

404957347 is a deficient number, since it is larger than the sum of its proper divisors (1).

404957347 is an equidigital number, since it uses as much as digits as its factorization.

404957347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 404957347 is about 20123.5520472903. The cubic root of 404957347 is about 739.8376482160.

The spelling of 404957347 in words is "four hundred four million, nine hundred fifty-seven thousand, three hundred forty-seven".