416866481 has 2 divisors, whose sum is σ = 416866482. Its totient is φ = 416866480.

The previous prime is 416866459. The next prime is 416866487. The reversal of 416866481 is 184668614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412902400 + 3964081 = 20320^2 + 1991^2 .

It is a cyclic number.

It is not a de Polignac number, because 416866481 - 2¹⁸ = 416604337 is a prime.

It is a super-2 number, since 2×416866481² = 347555325962646722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (416866487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208433240 + 208433241.

It is an arithmetic number, because the mean of its divisors is an integer number (208433241).

Almost surely, 2^416866481 is an apocalyptic number.

It is an amenable number.

416866481 is a deficient number, since it is larger than the sum of its proper divisors (1).

416866481 is an equidigital number, since it uses as much as digits as its factorization.

416866481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 44.

The square root of 416866481 is about 20417.3083681469. The cubic root of 416866481 is about 747.0201651997.

The spelling of 416866481 in words is "four hundred sixteen million, eight hundred sixty-six thousand, four hundred eighty-one".