5349821 has 4 divisors (see below), whose sum is σ = 5365500. Its totient is φ = 5334144.

The previous prime is 5349797. The next prime is 5349847. The reversal of 5349821 is 1289435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2059225 + 3290596 = 1435^2 + 1814^2 .

It is a cyclic number.

It is not a de Polignac number, because 5349821 - 2¹⁰ = 5348797 is a prime.

It is a Duffinian 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 (5349881) 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, 7316 + ... + 8013.

It is an arithmetic number, because the mean of its divisors is an integer number (1341375).

Almost surely, 2^5349821 is an apocalyptic number.

It is an amenable number.

5349821 is a deficient number, since it is larger than the sum of its proper divisors (15679).

5349821 is a wasteful number, since it uses less digits than its factorization.

5349821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15678.

The product of its digits is 8640, while the sum is 32.

The square root of 5349821 is about 2312.9680066962. The cubic root of 5349821 is about 174.8959490303.

The spelling of 5349821 in words is "five million, three hundred forty-nine thousand, eight hundred twenty-one".