1717993813 has 8 divisors (see below), whose sum is σ = 1838061920. Its totient is φ = 1600890480.

The previous prime is 1717993807. The next prime is 1717993829. The reversal of 1717993813 is 3183997171.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1717993813 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 (1717993313) 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, 739995 + ... + 742312.

It is an arithmetic number, because the mean of its divisors is an integer number (229757740).

Almost surely, 2^1717993813 is an apocalyptic number.

It is an amenable number.

1717993813 is a deficient number, since it is larger than the sum of its proper divisors (120068107).

1717993813 is a wasteful number, since it uses less digits than its factorization.

1717993813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482387.

The product of its digits is 285768, while the sum is 49.

The square root of 1717993813 is about 41448.6889177450. The cubic root of 1717993813 is about 1197.6792677373.

The spelling of 1717993813 in words is "one billion, seven hundred seventeen million, nine hundred ninety-three thousand, eight hundred thirteen".