471661573 has 2 divisors, whose sum is σ = 471661574. Its totient is φ = 471661572.

The previous prime is 471661571. The next prime is 471661579. The reversal of 471661573 is 375166174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 412171204 + 59490369 = 20302^2 + 7713^2 .

It is a cyclic number.

It is not a de Polignac number, because 471661573 - 2¹ = 471661571 is a prime.

Together with 471661571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471661571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235830786 + 235830787.

It is an arithmetic number, because the mean of its divisors is an integer number (235830787).

Almost surely, 2^471661573 is an apocalyptic number.

It is an amenable number.

471661573 is a deficient number, since it is larger than the sum of its proper divisors (1).

471661573 is an equidigital number, since it uses as much as digits as its factorization.

471661573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The square root of 471661573 is about 21717.7709031107. The cubic root of 471661573 is about 778.4131518035.

The spelling of 471661573 in words is "four hundred seventy-one million, six hundred sixty-one thousand, five hundred seventy-three".