1683889601 has 2 divisors, whose sum is σ = 1683889602. Its totient is φ = 1683889600.

The previous prime is 1683889591. The next prime is 1683889619. The reversal of 1683889601 is 1069883861.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1370776576 + 313113025 = 37024^2 + 17695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1683889601 - 2¹⁸ = 1683627457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1683889601.

It is not a weakly prime, because it can be changed into another prime (1683889621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841944800 + 841944801.

It is an arithmetic number, because the mean of its divisors is an integer number (841944801).

Almost surely, 2^1683889601 is an apocalyptic number.

It is an amenable number.

1683889601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1683889601 is an equidigital number, since it uses as much as digits as its factorization.

1683889601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 1683889601 is about 41035.2239058105. The cubic root of 1683889601 is about 1189.7011233030.

The spelling of 1683889601 in words is "one billion, six hundred eighty-three million, eight hundred eighty-nine thousand, six hundred one".