1069709009 has 2 divisors, whose sum is σ = 1069709010. Its totient is φ = 1069709008.

The previous prime is 1069708973. The next prime is 1069709023. The reversal of 1069709009 is 9009079601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 683979409 + 385729600 = 26153^2 + 19640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1069709009 - 2¹⁶ = 1069643473 is a prime.

It is a super-2 number, since 2×1069709009² = 2288554727871524162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1069709029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534854504 + 534854505.

It is an arithmetic number, because the mean of its divisors is an integer number (534854505).

Almost surely, 2^1069709009 is an apocalyptic number.

It is an amenable number.

1069709009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1069709009 is an equidigital number, since it uses as much as digits as its factorization.

1069709009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 1069709009 is about 32706.4062379223. The cubic root of 1069709009 is about 1022.7163942826.

The spelling of 1069709009 in words is "one billion, sixty-nine million, seven hundred nine thousand, nine".