1683708997 has 8 divisors (see below), whose sum is σ = 1849383360. Its totient is φ = 1525740480.

The previous prime is 1683708991. The next prime is 1683709009. The reversal of 1683708997 is 7998073861.

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

It is a cyclic number.

It is not a de Polignac number, because 1683708997 - 2²⁷ = 1549491269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683708991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1926004 + ... + 1926877.

It is an arithmetic number, because the mean of its divisors is an integer number (231172920).

Almost surely, 2^1683708997 is an apocalyptic number.

It is an amenable number.

1683708997 is a deficient number, since it is larger than the sum of its proper divisors (165674363).

1683708997 is a wasteful number, since it uses less digits than its factorization.

1683708997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852923.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The square root of 1683708997 is about 41033.0232495730. The cubic root of 1683708997 is about 1189.6585883562.

The spelling of 1683708997 in words is "one billion, six hundred eighty-three million, seven hundred eight thousand, nine hundred ninety-seven".