5380021 has 4 divisors (see below), whose sum is σ = 5663200. Its totient is φ = 5096844.

The previous prime is 5380009. The next prime is 5380049. The reversal of 5380021 is 1200835.

It is a happy number.

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 5380021 - 2⁷ = 5379893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 283159 = 5380021 / (5 + 3 + 8 + 0 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5380121) 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, 141561 + ... + 141598.

It is an arithmetic number, because the mean of its divisors is an integer number (1415800).

Almost surely, 2^5380021 is an apocalyptic number.

It is an amenable number.

5380021 is a deficient number, since it is larger than the sum of its proper divisors (283179).

5380021 is a wasteful number, since it uses less digits than its factorization.

5380021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283178.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5380021 is about 2319.4872278157. The cubic root of 5380021 is about 175.2244304214.

Adding to 5380021 its reverse (1200835), we get a palindrome (6580856).

The spelling of 5380021 in words is "five million, three hundred eighty thousand, twenty-one".