1683538717 has 12 divisors (see below), whose sum is σ = 1982002176. Its totient is φ = 1425643800.

The previous prime is 1683538697. The next prime is 1683538729. The reversal of 1683538717 is 7178353861.

It is not a de Polignac number, because 1683538717 - 2⁷ = 1683538589 is a prime.

It is a super-2 number, since 2×1683538717² = 5668605223276012178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683538777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202909 + ... + 211042.

It is an arithmetic number, because the mean of its divisors is an integer number (165166848).

Almost surely, 2^1683538717 is an apocalyptic number.

It is an amenable number.

1683538717 is a deficient number, since it is larger than the sum of its proper divisors (298463459).

1683538717 is an equidigital number, since it uses as much as digits as its factorization.

1683538717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414048 (or 414041 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 1683538717 is about 41030.9482829729. The cubic root of 1683538717 is about 1189.6184820801.

The spelling of 1683538717 in words is "one billion, six hundred eighty-three million, five hundred thirty-eight thousand, seven hundred seventeen".