76755109 has 2 divisors, whose sum is σ = 76755110. Its totient is φ = 76755108.

The previous prime is 76755103. The next prime is 76755139. The reversal of 76755109 is 90155767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55086084 + 21669025 = 7422^2 + 4655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76755109 is a prime.

It is equal to p_4490986 and since 76755109 and 4490986 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76755103) 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, 38377554 + 38377555.

It is an arithmetic number, because the mean of its divisors is an integer number (38377555).

Almost surely, 2^76755109 is an apocalyptic number.

It is an amenable number.

76755109 is a deficient number, since it is larger than the sum of its proper divisors (1).

76755109 is an equidigital number, since it uses as much as digits as its factorization.

76755109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 76755109 is about 8760.9993151466. Note that the first 3 decimals coincide. The cubic root of 76755109 is about 424.9805924240.

The spelling of 76755109 in words is "seventy-six million, seven hundred fifty-five thousand, one hundred nine".