471426209 has 2 divisors, whose sum is σ = 471426210. Its totient is φ = 471426208.

The previous prime is 471426191. The next prime is 471426217. The reversal of 471426209 is 902624174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412090000 + 59336209 = 20300^2 + 7703^2 .

It is a cyclic number.

It is not a de Polignac number, because 471426209 - 2¹² = 471422113 is a prime.

It is a super-2 number, since 2×471426209² = 444485341064223362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (471426229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235713104 + 235713105.

It is an arithmetic number, because the mean of its divisors is an integer number (235713105).

Almost surely, 2^471426209 is an apocalyptic number.

It is an amenable number.

471426209 is a deficient number, since it is larger than the sum of its proper divisors (1).

471426209 is an equidigital number, since it uses as much as digits as its factorization.

471426209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 471426209 is about 21712.3515308683. The cubic root of 471426209 is about 778.2836515243.

The spelling of 471426209 in words is "four hundred seventy-one million, four hundred twenty-six thousand, two hundred nine".