76297769 has 2 divisors, whose sum is σ = 76297770. Its totient is φ = 76297768.

The previous prime is 76297729. The next prime is 76297777. The reversal of 76297769 is 96779267.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73753744 + 2544025 = 8588^2 + 1595^2 .

It is a cyclic number.

It is not a de Polignac number, because 76297769 - 2¹² = 76293673 is a prime.

It is a super-2 number, since 2×76297769² = 11642699108754722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76297769.

It is not a weakly prime, because it can be changed into another prime (76297709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38148884 + 38148885.

It is an arithmetic number, because the mean of its divisors is an integer number (38148885).

Almost surely, 2^76297769 is an apocalyptic number.

It is an amenable number.

76297769 is a deficient number, since it is larger than the sum of its proper divisors (1).

76297769 is an equidigital number, since it uses as much as digits as its factorization.

76297769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2000376, while the sum is 53.

The square root of 76297769 is about 8734.8594150106. The cubic root of 76297769 is about 424.1348379298.

The spelling of 76297769 in words is "seventy-six million, two hundred ninety-seven thousand, seven hundred sixty-nine".