1683668667 has 8 divisors (see below), whose sum is σ = 2245486096. Its totient is φ = 1122148512.

The previous prime is 1683668617. The next prime is 1683668669. The reversal of 1683668667 is 7668663861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1683668667 - 2¹⁸ = 1683406523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1683668669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60748 + ... + 84009.

It is an arithmetic number, because the mean of its divisors is an integer number (280685762).

Almost surely, 2^1683668667 is an apocalyptic number.

1683668667 is a deficient number, since it is larger than the sum of its proper divisors (561817429).

1683668667 is a wasteful number, since it uses less digits than its factorization.

1683668667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148637.

The product of its digits is 10450944, while the sum is 57.

The square root of 1683668667 is about 41032.5318131845. The cubic root of 1683668667 is about 1189.6490896218.

The spelling of 1683668667 in words is "one billion, six hundred eighty-three million, six hundred sixty-eight thousand, six hundred sixty-seven".