1067996609 has 2 divisors, whose sum is σ = 1067996610. Its totient is φ = 1067996608.

The previous prime is 1067996603. The next prime is 1067996621. The reversal of 1067996609 is 9066997601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 698280625 + 369715984 = 26425^2 + 19228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1067996609 is a prime.

It is a super-2 number, since 2×1067996609² = 2281233513670997762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1067996603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533998304 + 533998305.

It is an arithmetic number, because the mean of its divisors is an integer number (533998305).

Almost surely, 2^1067996609 is an apocalyptic number.

It is an amenable number.

1067996609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067996609 is an equidigital number, since it uses as much as digits as its factorization.

1067996609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The square root of 1067996609 is about 32680.2173952377. The cubic root of 1067996609 is about 1022.1703782260.

The spelling of 1067996609 in words is "one billion, sixty-seven million, nine hundred ninety-six thousand, six hundred nine".