76234309 has 2 divisors, whose sum is σ = 76234310. Its totient is φ = 76234308.

The previous prime is 76234303. The next prime is 76234321. The reversal of 76234309 is 90343267.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72420100 + 3814209 = 8510^2 + 1953^2 .

It is a cyclic number.

It is not a de Polignac number, because 76234309 - 2²¹ = 74137157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76234303) 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, 38117154 + 38117155.

It is an arithmetic number, because the mean of its divisors is an integer number (38117155).

Almost surely, 2^76234309 is an apocalyptic number.

It is an amenable number.

76234309 is a deficient number, since it is larger than the sum of its proper divisors (1).

76234309 is an equidigital number, since it uses as much as digits as its factorization.

76234309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 76234309 is about 8731.2260880131. The cubic root of 76234309 is about 424.0172151697.

The spelling of 76234309 in words is "seventy-six million, two hundred thirty-four thousand, three hundred nine".