1696838993 has 4 divisors (see below), whose sum is σ = 1696941120. Its totient is φ = 1696736868.

The previous prime is 1696838959. The next prime is 1696839017. The reversal of 1696838993 is 3998386961.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1696838993 - 2⁶ = 1696838929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1696858993) 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, 19733 + ... + 61506.

It is an arithmetic number, because the mean of its divisors is an integer number (424235280).

Almost surely, 2^1696838993 is an apocalyptic number.

It is an amenable number.

1696838993 is a deficient number, since it is larger than the sum of its proper divisors (102127).

1696838993 is an equidigital number, since it uses as much as digits as its factorization.

1696838993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102126.

The product of its digits is 15116544, while the sum is 62.

The square root of 1696838993 is about 41192.7055799932. The cubic root of 1696838993 is about 1192.7430057655.

The spelling of 1696838993 in words is "one billion, six hundred ninety-six million, eight hundred thirty-eight thousand, nine hundred ninety-three".