5718321 has 24 divisors (see below), whose sum is σ = 9522240. Its totient is φ = 3239136.

The previous prime is 5718301. The next prime is 5718343. The reversal of 5718321 is 1238175.

It is not a de Polignac number, because 5718321 - 2⁵ = 5718289 is a prime.

5718321 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5718301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8431 + ... + 9083.

It is an arithmetic number, because the mean of its divisors is an integer number (396760).

Almost surely, 2^5718321 is an apocalyptic number.

It is an amenable number.

5718321 is a deficient number, since it is larger than the sum of its proper divisors (3803919).

5718321 is a wasteful number, since it uses less digits than its factorization.

5718321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 802 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 5718321 is about 2391.3011102745. The cubic root of 5718321 is about 178.8227806057.

The spelling of 5718321 in words is "five million, seven hundred eighteen thousand, three hundred twenty-one".