404747471 has 2 divisors, whose sum is σ = 404747472. Its totient is φ = 404747470.

The previous prime is 404747467. The next prime is 404747489. The reversal of 404747471 is 174747404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404747471 - 2² = 404747467 is a prime.

It is a super-3 number, since 3×404747471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404747971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202373735 + 202373736.

It is an arithmetic number, because the mean of its divisors is an integer number (202373736).

Almost surely, 2^404747471 is an apocalyptic number.

404747471 is a deficient number, since it is larger than the sum of its proper divisors (1).

404747471 is an equidigital number, since it uses as much as digits as its factorization.

404747471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87808, while the sum is 38.

The square root of 404747471 is about 20118.3366857203. The cubic root of 404747471 is about 739.7098150013.

The spelling of 404747471 in words is "four hundred four million, seven hundred forty-seven thousand, four hundred seventy-one".