416878361 has 2 divisors, whose sum is σ = 416878362. Its totient is φ = 416878360.

The previous prime is 416878333. The next prime is 416878433. The reversal of 416878361 is 163878614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216825625 + 200052736 = 14725^2 + 14144^2 .

It is a cyclic number.

It is not a de Polignac number, because 416878361 - 2¹⁰ = 416877337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (416878961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208439180 + 208439181.

It is an arithmetic number, because the mean of its divisors is an integer number (208439181).

Almost surely, 2^416878361 is an apocalyptic number.

It is an amenable number.

416878361 is a deficient number, since it is larger than the sum of its proper divisors (1).

416878361 is an equidigital number, since it uses as much as digits as its factorization.

416878361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 416878361 is about 20417.5992957057. The cubic root of 416878361 is about 747.0272614089.

The spelling of 416878361 in words is "four hundred sixteen million, eight hundred seventy-eight thousand, three hundred sixty-one".