5718021 has 4 divisors (see below), whose sum is σ = 7624032. Its totient is φ = 3812012.

The previous prime is 5717977. The next prime is 5718023. The reversal of 5718021 is 1208175.

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.

It is a cyclic number.

It is not a de Polignac number, because 5718021 - 2⁷ = 5717893 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 5717982 and 5718000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5718023) 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, 953001 + ... + 953006.

It is an arithmetic number, because the mean of its divisors is an integer number (1906008).

Almost surely, 2^5718021 is an apocalyptic number.

It is an amenable number.

5718021 is a deficient number, since it is larger than the sum of its proper divisors (1906011).

5718021 is a wasteful number, since it uses less digits than its factorization.

5718021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906010.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 5718021 is about 2391.2383820941. The cubic root of 5718021 is about 178.8196533607.

The spelling of 5718021 in words is "five million, seven hundred eighteen thousand, twenty-one".