69316309 has 2 divisors, whose sum is σ = 69316310. Its totient is φ = 69316308.

The previous prime is 69316271. The next prime is 69316321. The reversal of 69316309 is 90361396.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68840209 + 476100 = 8297^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 69316309 - 2⁹ = 69315797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69316339) 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, 34658154 + 34658155.

It is an arithmetic number, because the mean of its divisors is an integer number (34658155).

Almost surely, 2^69316309 is an apocalyptic number.

It is an amenable number.

69316309 is a deficient number, since it is larger than the sum of its proper divisors (1).

69316309 is an equidigital number, since it uses as much as digits as its factorization.

69316309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 69316309 is about 8325.6416569535. The cubic root of 69316309 is about 410.7823827288.

The spelling of 69316309 in words is "sixty-nine million, three hundred sixteen thousand, three hundred nine".