1067278417 has 2 divisors, whose sum is σ = 1067278418. Its totient is φ = 1067278416.

The previous prime is 1067278391. The next prime is 1067278427. The reversal of 1067278417 is 7148727601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 696484881 + 370793536 = 26391^2 + 19256^2 .

It is an emirp because it is prime and its reverse (7148727601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1067278417 - 2¹¹ = 1067276369 is a prime.

It is a super-2 number, since 2×1067278417² = 2278166438788051778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1067278427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533639208 + 533639209.

It is an arithmetic number, because the mean of its divisors is an integer number (533639209).

Almost surely, 2^1067278417 is an apocalyptic number.

It is an amenable number.

1067278417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067278417 is an equidigital number, since it uses as much as digits as its factorization.

1067278417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 1067278417 is about 32669.2273707230. The cubic root of 1067278417 is about 1021.9412017163.

The spelling of 1067278417 in words is "one billion, sixty-seven million, two hundred seventy-eight thousand, four hundred seventeen".