5718981 has 8 divisors (see below), whose sum is σ = 8026720. Its totient is φ = 3611952.

The previous prime is 5718971. The next prime is 5718983. The reversal of 5718981 is 1898175.

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

It is not a de Polignac number, because 5718981 - 2⁹ = 5718469 is a prime.

It is a super-2 number, since 2×5718981² = 65413487356722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5718983) 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, 50110 + ... + 50223.

It is an arithmetic number, because the mean of its divisors is an integer number (1003340).

Almost surely, 2^5718981 is an apocalyptic number.

It is an amenable number.

5718981 is a deficient number, since it is larger than the sum of its proper divisors (2307739).

5718981 is a wasteful number, since it uses less digits than its factorization.

5718981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100355.

The product of its digits is 20160, while the sum is 39.

The square root of 5718981 is about 2391.4391064796. The cubic root of 5718981 is about 178.8296601597.

The spelling of 5718981 in words is "five million, seven hundred eighteen thousand, nine hundred eighty-one".