775263667 has 2 divisors, whose sum is σ = 775263668. Its totient is φ = 775263666.

The previous prime is 775263661. The next prime is 775263679. The reversal of 775263667 is 766362577.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 775263667 - 2¹⁵ = 775230899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 775263667.

It is not a weakly prime, because it can be changed into another prime (775263661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387631833 + 387631834.

It is an arithmetic number, because the mean of its divisors is an integer number (387631834).

Almost surely, 2^775263667 is an apocalyptic number.

775263667 is a deficient number, since it is larger than the sum of its proper divisors (1).

775263667 is an equidigital number, since it uses as much as digits as its factorization.

775263667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 49.

The square root of 775263667 is about 27843.5570105545. The cubic root of 775263667 is about 918.6494309712.

The spelling of 775263667 in words is "seven hundred seventy-five million, two hundred sixty-three thousand, six hundred sixty-seven".