1683318697 has 4 divisors (see below), whose sum is σ = 1700672596. Its totient is φ = 1665964800.

The previous prime is 1683318671. The next prime is 1683318739. The reversal of 1683318697 is 7968133861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7968133861 = 47 ⋅169534763.

It can be written as a sum of positive squares in 2 ways, for example, as 228735376 + 1454583321 = 15124^2 + 38139^2 .

It is a cyclic number.

It is not a de Polignac number, because 1683318697 - 2¹⁹ = 1682794409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1683318667) 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, 8676804 + ... + 8676997.

It is an arithmetic number, because the mean of its divisors is an integer number (425168149).

Almost surely, 2^1683318697 is an apocalyptic number.

It is an amenable number.

1683318697 is a deficient number, since it is larger than the sum of its proper divisors (17353899).

1683318697 is an equidigital number, since it uses as much as digits as its factorization.

1683318697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17353898.

The product of its digits is 1306368, while the sum is 52.

The square root of 1683318697 is about 41028.2670484631. The cubic root of 1683318697 is about 1189.5666564704.

The spelling of 1683318697 in words is "one billion, six hundred eighty-three million, three hundred eighteen thousand, six hundred ninety-seven".