471929681 has 2 divisors, whose sum is σ = 471929682. Its totient is φ = 471929680.

The previous prime is 471929669. The next prime is 471929719. The reversal of 471929681 is 186929174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384787456 + 87142225 = 19616^2 + 9335^2 .

It is a cyclic number.

It is not a de Polignac number, because 471929681 - 2¹⁰ = 471928657 is a prime.

It is a super-2 number, since 2×471929681² = 445435247617523522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (471929651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235964840 + 235964841.

It is an arithmetic number, because the mean of its divisors is an integer number (235964841).

Almost surely, 2^471929681 is an apocalyptic number.

It is an amenable number.

471929681 is a deficient number, since it is larger than the sum of its proper divisors (1).

471929681 is an equidigital number, since it uses as much as digits as its factorization.

471929681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 47.

The square root of 471929681 is about 21723.9425749563. The cubic root of 471929681 is about 778.5606157720.

The spelling of 471929681 in words is "four hundred seventy-one million, nine hundred twenty-nine thousand, six hundred eighty-one".