69616109 has 2 divisors, whose sum is σ = 69616110. Its totient is φ = 69616108.

The previous prime is 69616091. The next prime is 69616123. The reversal of 69616109 is 90161696.

Together with previous prime (69616091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38502025 + 31114084 = 6205^2 + 5578^2 .

It is a cyclic number.

It is not a de Polignac number, because 69616109 - 2⁸ = 69615853 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69616199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34808054 + 34808055.

It is an arithmetic number, because the mean of its divisors is an integer number (34808055).

Almost surely, 2^69616109 is an apocalyptic number.

It is an amenable number.

69616109 is a deficient number, since it is larger than the sum of its proper divisors (1).

69616109 is an equidigital number, since it uses as much as digits as its factorization.

69616109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 69616109 is about 8343.6268492784. The cubic root of 69616109 is about 411.3737559878.

The spelling of 69616109 in words is "sixty-nine million, six hundred sixteen thousand, one hundred nine".