471257681 has 2 divisors, whose sum is σ = 471257682. Its totient is φ = 471257680.

The previous prime is 471257599. The next prime is 471257701. The reversal of 471257681 is 186752174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307827025 + 163430656 = 17545^2 + 12784^2 .

It is a cyclic number.

It is not a de Polignac number, because 471257681 - 2¹⁰ = 471256657 is a prime.

It is a super-2 number, since 2×471257681² = 444167603802995522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (471257881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235628840 + 235628841.

It is an arithmetic number, because the mean of its divisors is an integer number (235628841).

Almost surely, 2^471257681 is an apocalyptic number.

It is an amenable number.

471257681 is a deficient number, since it is larger than the sum of its proper divisors (1).

471257681 is an equidigital number, since it uses as much as digits as its factorization.

471257681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 41.

The square root of 471257681 is about 21708.4702593250. The cubic root of 471257681 is about 778.1908987828.

The spelling of 471257681 in words is "four hundred seventy-one million, two hundred fifty-seven thousand, six hundred eighty-one".