471432809 has 2 divisors, whose sum is σ = 471432810. Its totient is φ = 471432808.

The previous prime is 471432749. The next prime is 471432821. The reversal of 471432809 is 908234174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372490000 + 98942809 = 19300^2 + 9947^2 .

It is a cyclic number.

It is not a de Polignac number, because 471432809 - 2⁸ = 471432553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (471432859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235716404 + 235716405.

It is an arithmetic number, because the mean of its divisors is an integer number (235716405).

Almost surely, 2^471432809 is an apocalyptic number.

It is an amenable number.

471432809 is a deficient number, since it is larger than the sum of its proper divisors (1).

471432809 is an equidigital number, since it uses as much as digits as its factorization.

471432809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 471432809 is about 21712.5035175587. The cubic root of 471432809 is about 778.2872835160.

The spelling of 471432809 in words is "four hundred seventy-one million, four hundred thirty-two thousand, eight hundred nine".