5997021 has 4 divisors (see below), whose sum is σ = 7996032. Its totient is φ = 3998012.

The previous prime is 5997001. The next prime is 5997031. The reversal of 5997021 is 1207995.

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 5997021 - 2⁹ = 5996509 is a prime.

It is a D-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 (5997001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999501 + ... + 999506.

It is an arithmetic number, because the mean of its divisors is an integer number (1999008).

Almost surely, 2^5997021 is an apocalyptic number.

It is an amenable number.

5997021 is a deficient number, since it is larger than the sum of its proper divisors (1999011).

5997021 is a wasteful number, since it uses less digits than its factorization.

5997021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999010.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 5997021 is about 2448.8815814571. The cubic root of 5997021 is about 181.6819809589.

The spelling of 5997021 in words is "five million, nine hundred ninety-seven thousand, twenty-one".