76773769 has 2 divisors, whose sum is σ = 76773770. Its totient is φ = 76773768.

The previous prime is 76773757. The next prime is 76773797. The reversal of 76773769 is 96737767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41216400 + 35557369 = 6420^2 + 5963^2 .

It is a cyclic number.

It is not a de Polignac number, because 76773769 - 2¹⁵ = 76741001 is a prime.

It is a super-2 number, since 2×76773769² = 11788423212930722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76773709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38386884 + 38386885.

It is an arithmetic number, because the mean of its divisors is an integer number (38386885).

Almost surely, 2^76773769 is an apocalyptic number.

It is an amenable number.

76773769 is a deficient number, since it is larger than the sum of its proper divisors (1).

76773769 is an equidigital number, since it uses as much as digits as its factorization.

76773769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2333772, while the sum is 52.

The square root of 76773769 is about 8762.0641974366. The cubic root of 76773769 is about 425.0150287650.

It can be divided in two parts, 7 and 6773769, that added together give a palindrome (6773776).

The spelling of 76773769 in words is "seventy-six million, seven hundred seventy-three thousand, seven hundred sixty-nine".