1693532609 has 2 divisors, whose sum is σ = 1693532610. Its totient is φ = 1693532608.

The previous prime is 1693532579. The next prime is 1693532611. The reversal of 1693532609 is 9062353961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1207771009 + 485761600 = 34753^2 + 22040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1693532609 - 2⁸ = 1693532353 is a prime.

Together with 1693532611, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1693532609.

It is not a weakly prime, because it can be changed into another prime (1693532629) 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, 846766304 + 846766305.

It is an arithmetic number, because the mean of its divisors is an integer number (846766305).

Almost surely, 2^1693532609 is an apocalyptic number.

It is an amenable number.

1693532609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1693532609 is an equidigital number, since it uses as much as digits as its factorization.

1693532609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 44.

The square root of 1693532609 is about 41152.5528855744. The cubic root of 1693532609 is about 1191.9677936079.

The spelling of 1693532609 in words is "one billion, six hundred ninety-three million, five hundred thirty-two thousand, six hundred nine".