5659021 has 4 divisors (see below), whose sum is σ = 5743552. Its totient is φ = 5574492.

The previous prime is 5659013. The next prime is 5659037. The reversal of 5659021 is 1209565.

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 5659021 - 2³ = 5659013 is a prime.

It is a Duffinian number.

5659021 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5659001) 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, 42165 + ... + 42298.

It is an arithmetic number, because the mean of its divisors is an integer number (1435888).

Almost surely, 2^5659021 is an apocalyptic number.

It is an amenable number.

5659021 is a deficient number, since it is larger than the sum of its proper divisors (84531).

5659021 is an equidigital number, since it uses as much as digits as its factorization.

5659021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84530.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 5659021 is about 2378.8696895795. The cubic root of 5659021 is about 178.2024901789.

The spelling of 5659021 in words is "five million, six hundred fifty-nine thousand, twenty-one".