404313947 has 2 divisors, whose sum is σ = 404313948. Its totient is φ = 404313946.

The previous prime is 404313929. The next prime is 404313953. The reversal of 404313947 is 749313404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404313947 - 2⁶ = 404313883 is a prime.

It is not a weakly prime, because it can be changed into another prime (404313967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202156973 + 202156974.

It is an arithmetic number, because the mean of its divisors is an integer number (202156974).

Almost surely, 2^404313947 is an apocalyptic number.

404313947 is a deficient number, since it is larger than the sum of its proper divisors (1).

404313947 is an equidigital number, since it uses as much as digits as its factorization.

404313947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 404313947 is about 20107.5594491226. The cubic root of 404313947 is about 739.4456202108.

The spelling of 404313947 in words is "four hundred four million, three hundred thirteen thousand, nine hundred forty-seven".