471446621 has 2 divisors, whose sum is σ = 471446622. Its totient is φ = 471446620.

The previous prime is 471446611. The next prime is 471446627. The reversal of 471446621 is 126644174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354568900 + 116877721 = 18830^2 + 10811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-471446621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471446627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235723310 + 235723311.

It is an arithmetic number, because the mean of its divisors is an integer number (235723311).

Almost surely, 2^471446621 is an apocalyptic number.

It is an amenable number.

471446621 is a deficient number, since it is larger than the sum of its proper divisors (1).

471446621 is an equidigital number, since it uses as much as digits as its factorization.

471446621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 471446621 is about 21712.8215808080. The cubic root of 471446621 is about 778.2948841742.

The spelling of 471446621 in words is "four hundred seventy-one million, four hundred forty-six thousand, six hundred twenty-one".