76397129 has 2 divisors, whose sum is σ = 76397130. Its totient is φ = 76397128.

The previous prime is 76397093. The next prime is 76397143. The reversal of 76397129 is 92179367.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75342400 + 1054729 = 8680^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 76397129 - 2¹² = 76393033 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76397129.

It is not a weakly prime, because it can be changed into another prime (76397159) 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, 38198564 + 38198565.

It is an arithmetic number, because the mean of its divisors is an integer number (38198565).

Almost surely, 2^76397129 is an apocalyptic number.

It is an amenable number.

76397129 is a deficient number, since it is larger than the sum of its proper divisors (1).

76397129 is an equidigital number, since it uses as much as digits as its factorization.

76397129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 44.

The square root of 76397129 is about 8740.5451203000. The cubic root of 76397129 is about 424.3188702105.

The spelling of 76397129 in words is "seventy-six million, three hundred ninety-seven thousand, one hundred twenty-nine".