481665617 has 2 divisors, whose sum is σ = 481665618. Its totient is φ = 481665616.

The previous prime is 481665571. The next prime is 481665623. The reversal of 481665617 is 716566184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310605376 + 171060241 = 17624^2 + 13079^2 .

It is a cyclic number.

It is not a de Polignac number, because 481665617 - 2¹⁰ = 481664593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (481665697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240832808 + 240832809.

It is an arithmetic number, because the mean of its divisors is an integer number (240832809).

Almost surely, 2^481665617 is an apocalyptic number.

It is an amenable number.

481665617 is a deficient number, since it is larger than the sum of its proper divisors (1).

481665617 is an equidigital number, since it uses as much as digits as its factorization.

481665617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 481665617 is about 21946.8817147220. The cubic root of 481665617 is about 783.8781313287.

The spelling of 481665617 in words is "four hundred eighty-one million, six hundred sixty-five thousand, six hundred seventeen".