412778243 has 2 divisors, whose sum is σ = 412778244. Its totient is φ = 412778242.

The previous prime is 412778227. The next prime is 412778279. The reversal of 412778243 is 342877214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 412778243 - 2⁴ = 412778227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 412778197 and 412778206.

It is not a weakly prime, because it can be changed into another prime (412778143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206389121 + 206389122.

It is an arithmetic number, because the mean of its divisors is an integer number (206389122).

Almost surely, 2^412778243 is an apocalyptic number.

412778243 is a deficient number, since it is larger than the sum of its proper divisors (1).

412778243 is an equidigital number, since it uses as much as digits as its factorization.

412778243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 38.

The square root of 412778243 is about 20316.9447260163. The cubic root of 412778243 is about 744.5701124839.

The spelling of 412778243 in words is "four hundred twelve million, seven hundred seventy-eight thousand, two hundred forty-three".