77068269 has 6 divisors (see below), whose sum is σ = 111320846. Its totient is φ = 51378840.

The previous prime is 77068253. The next prime is 77068273. The reversal of 77068269 is 96286077.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45562500 + 31505769 = 6750^2 + 5613^2 .

It is not a de Polignac number, because 77068269 - 2⁴ = 77068253 is a prime.

It is a super-2 number, since 2×77068269² = 11879036173312722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77068289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4281562 + ... + 4281579.

Almost surely, 2^77068269 is an apocalyptic number.

It is an amenable number.

77068269 is a deficient number, since it is larger than the sum of its proper divisors (34252577).

77068269 is a wasteful number, since it uses less digits than its factorization.

77068269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8563147 (or 8563144 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 77068269 is about 8778.8535128455. The cubic root of 77068269 is about 425.5577802077.

The spelling of 77068269 in words is "seventy-seven million, sixty-eight thousand, two hundred sixty-nine".