76318769 has 2 divisors, whose sum is σ = 76318770. Its totient is φ = 76318768.

The previous prime is 76318709. The next prime is 76318783. The reversal of 76318769 is 96781367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75082225 + 1236544 = 8665^2 + 1112^2 .

It is an emirp because it is prime and its reverse (96781367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76318769 - 2⁸ = 76318513 is a prime.

It is a super-3 number, since 3×76318769³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (76318709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38159384 + 38159385.

It is an arithmetic number, because the mean of its divisors is an integer number (38159385).

Almost surely, 2^76318769 is an apocalyptic number.

It is an amenable number.

76318769 is a deficient number, since it is larger than the sum of its proper divisors (1).

76318769 is an equidigital number, since it uses as much as digits as its factorization.

76318769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 76318769 is about 8736.0614123299. The cubic root of 76318769 is about 424.1737469510.

The spelling of 76318769 in words is "seventy-six million, three hundred eighteen thousand, seven hundred sixty-nine".