767222081 has 2 divisors, whose sum is σ = 767222082. Its totient is φ = 767222080.

The previous prime is 767222059. The next prime is 767222083. The reversal of 767222081 is 180222767.

767222081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 581581456 + 185640625 = 24116^2 + 13625^2 .

It is an emirp because it is prime and its reverse (180222767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 767222081 - 2¹⁸ = 766959937 is a prime.

It is a super-2 number, since 2×767222081² = 1177259443147941122, which contains 22 as substring.

Together with 767222083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (767222083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383611040 + 383611041.

It is an arithmetic number, because the mean of its divisors is an integer number (383611041).

Almost surely, 2^767222081 is an apocalyptic number.

It is an amenable number.

767222081 is a deficient number, since it is larger than the sum of its proper divisors (1).

767222081 is an equidigital number, since it uses as much as digits as its factorization.

767222081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 767222081 is about 27698.7739981393. The cubic root of 767222081 is about 915.4620899477.

The spelling of 767222081 in words is "seven hundred sixty-seven million, two hundred twenty-two thousand, eighty-one".