76350809 has 2 divisors, whose sum is σ = 76350810. Its totient is φ = 76350808.

The previous prime is 76350803. The next prime is 76350821. The reversal of 76350809 is 90805367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48260809 + 28090000 = 6947^2 + 5300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76350809 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76350803) 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, 38175404 + 38175405.

It is an arithmetic number, because the mean of its divisors is an integer number (38175405).

Almost surely, 2^76350809 is an apocalyptic number.

It is an amenable number.

76350809 is a deficient number, since it is larger than the sum of its proper divisors (1).

76350809 is an equidigital number, since it uses as much as digits as its factorization.

76350809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 76350809 is about 8737.8949982247. The cubic root of 76350809 is about 424.2330972508.

The spelling of 76350809 in words is "seventy-six million, three hundred fifty thousand, eight hundred nine".