1682746849 has 4 divisors (see below), whose sum is σ = 1923139264. Its totient is φ = 1442354436.

The previous prime is 1682746841. The next prime is 1682746883. The reversal of 1682746849 is 9486472861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9486472861 = 503 ⋅18859787.

It is a cyclic number.

It is not a de Polignac number, because 1682746849 - 2³ = 1682746841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1682746849.

It is not an unprimeable number, because it can be changed into a prime (1682746841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120196197 + ... + 120196210.

It is an arithmetic number, because the mean of its divisors is an integer number (480784816).

Almost surely, 2^1682746849 is an apocalyptic number.

It is an amenable number.

1682746849 is a deficient number, since it is larger than the sum of its proper divisors (240392415).

1682746849 is an equidigital number, since it uses as much as digits as its factorization.

1682746849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240392414.

The product of its digits is 4644864, while the sum is 55.

The square root of 1682746849 is about 41021.2975050766. The cubic root of 1682746849 is about 1189.4319368122.

The spelling of 1682746849 in words is "one billion, six hundred eighty-two million, seven hundred forty-six thousand, eight hundred forty-nine".