76127789 has 2 divisors, whose sum is σ = 76127790. Its totient is φ = 76127788.

The previous prime is 76127783. The next prime is 76127791. The reversal of 76127789 is 98772167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72675625 + 3452164 = 8525^2 + 1858^2 .

It is a cyclic number.

It is not a de Polignac number, because 76127789 - 2⁴ = 76127773 is a prime.

Together with 76127791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76127783) 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, 38063894 + 38063895.

It is an arithmetic number, because the mean of its divisors is an integer number (38063895).

Almost surely, 2^76127789 is an apocalyptic number.

It is an amenable number.

76127789 is a deficient number, since it is larger than the sum of its proper divisors (1).

76127789 is an equidigital number, since it uses as much as digits as its factorization.

76127789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 47.

The square root of 76127789 is about 8725.1240105800. The cubic root of 76127789 is about 423.8196341101.

The spelling of 76127789 in words is "seventy-six million, one hundred twenty-seven thousand, seven hundred eighty-nine".