487445173 has 2 divisors, whose sum is σ = 487445174. Its totient is φ = 487445172.

The previous prime is 487445149. The next prime is 487445183. The reversal of 487445173 is 371544784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284866884 + 202578289 = 16878^2 + 14233^2 .

It is a cyclic number.

It is not a de Polignac number, because 487445173 - 2¹³ = 487436981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487445113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243722586 + 243722587.

It is an arithmetic number, because the mean of its divisors is an integer number (243722587).

Almost surely, 2^487445173 is an apocalyptic number.

It is an amenable number.

487445173 is a deficient number, since it is larger than the sum of its proper divisors (1).

487445173 is an equidigital number, since it uses as much as digits as its factorization.

487445173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 43.

The square root of 487445173 is about 22078.1605438497. The cubic root of 487445173 is about 787.0009525812. Note that the first 3 decimals are identical.

The spelling of 487445173 in words is "four hundred eighty-seven million, four hundred forty-five thousand, one hundred seventy-three".