471960661 has 2 divisors, whose sum is σ = 471960662. Its totient is φ = 471960660.

The previous prime is 471960649. The next prime is 471960673. The reversal of 471960661 is 166069174.

It is a balanced prime because it is at equal distance from previous prime (471960649) and next prime (471960673).

It can be written as a sum of positive squares in only one way, i.e., 330112561 + 141848100 = 18169^2 + 11910^2 .

It is a cyclic number.

It is not a de Polignac number, because 471960661 - 2²¹ = 469863509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471960611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235980330 + 235980331.

It is an arithmetic number, because the mean of its divisors is an integer number (235980331).

Almost surely, 2^471960661 is an apocalyptic number.

It is an amenable number.

471960661 is a deficient number, since it is larger than the sum of its proper divisors (1).

471960661 is an equidigital number, since it uses as much as digits as its factorization.

471960661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 471960661 is about 21724.6556014129. The cubic root of 471960661 is about 778.5776517000.

The spelling of 471960661 in words is "four hundred seventy-one million, nine hundred sixty thousand, six hundred sixty-one".