471210661 has 2 divisors, whose sum is σ = 471210662. Its totient is φ = 471210660.

The previous prime is 471210643. The next prime is 471210679. The reversal of 471210661 is 166012174.

It is a balanced prime because it is at equal distance from previous prime (471210643) and next prime (471210679).

It can be written as a sum of positive squares in only one way, i.e., 470065761 + 1144900 = 21681^2 + 1070^2 .

It is a cyclic number.

It is not a de Polignac number, because 471210661 - 2⁵ = 471210629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471210601) 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, 235605330 + 235605331.

It is an arithmetic number, because the mean of its divisors is an integer number (235605331).

Almost surely, 2^471210661 is an apocalyptic number.

It is an amenable number.

471210661 is a deficient number, since it is larger than the sum of its proper divisors (1).

471210661 is an equidigital number, since it uses as much as digits as its factorization.

471210661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 471210661 is about 21707.3872448989. The cubic root of 471210661 is about 778.1650164439.

The spelling of 471210661 in words is "four hundred seventy-one million, two hundred ten thousand, six hundred sixty-one".