473946581 has 2 divisors, whose sum is σ = 473946582. Its totient is φ = 473946580.

The previous prime is 473946563. The next prime is 473946589. The reversal of 473946581 is 185649374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 446645956 + 27300625 = 21134^2 + 5225^2 .

It is a cyclic number.

It is not a de Polignac number, because 473946581 - 2¹⁸ = 473684437 is a prime.

It is a super-2 number, since 2×473946581² = 449250723283179122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473946589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236973290 + 236973291.

It is an arithmetic number, because the mean of its divisors is an integer number (236973291).

Almost surely, 2^473946581 is an apocalyptic number.

It is an amenable number.

473946581 is a deficient number, since it is larger than the sum of its proper divisors (1).

473946581 is an equidigital number, since it uses as much as digits as its factorization.

473946581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 473946581 is about 21770.3142145445. The cubic root of 473946581 is about 779.6681587547.

The spelling of 473946581 in words is "four hundred seventy-three million, nine hundred forty-six thousand, five hundred eighty-one".