69432109 has 2 divisors, whose sum is σ = 69432110. Its totient is φ = 69432108.

The previous prime is 69432089. The next prime is 69432133. The reversal of 69432109 is 90123496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68475625 + 956484 = 8275^2 + 978^2 .

It is a cyclic number.

It is not a de Polignac number, because 69432109 - 2⁷ = 69431981 is a 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 (69432149) 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, 34716054 + 34716055.

It is an arithmetic number, because the mean of its divisors is an integer number (34716055).

Almost surely, 2^69432109 is an apocalyptic number.

It is an amenable number.

69432109 is a deficient number, since it is larger than the sum of its proper divisors (1).

69432109 is an equidigital number, since it uses as much as digits as its factorization.

69432109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 69432109 is about 8332.5931737965. The cubic root of 69432109 is about 411.0110068230.

The spelling of 69432109 in words is "sixty-nine million, four hundred thirty-two thousand, one hundred nine".