5380821 has 6 divisors (see below), whose sum is σ = 7772310. Its totient is φ = 3587208.

The previous prime is 5380811. The next prime is 5380831. The reversal of 5380821 is 1280835.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5380811) and next prime (5380831).

It can be written as a sum of positive squares in only one way, i.e., 2852721 + 2528100 = 1689^2 + 1590^2 .

It is not a de Polignac number, because 5380821 - 2²² = 1186517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5380811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 298926 + ... + 298943.

It is an arithmetic number, because the mean of its divisors is an integer number (1295385).

Almost surely, 2^5380821 is an apocalyptic number.

It is an amenable number.

5380821 is a deficient number, since it is larger than the sum of its proper divisors (2391489).

5380821 is a wasteful number, since it uses less digits than its factorization.

5380821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597875 (or 597872 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 5380821 is about 2319.6596733142. The cubic root of 5380821 is about 175.2331151828.

The spelling of 5380821 in words is "five million, three hundred eighty thousand, eight hundred twenty-one".