5396821 has 4 divisors (see below), whose sum is σ = 5570944. Its totient is φ = 5222700.

The previous prime is 5396819. The next prime is 5396861. The reversal of 5396821 is 1286935.

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 5396821 - 2¹ = 5396819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5396861) 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 3 ways as a sum of consecutive naturals, for example, 87015 + ... + 87076.

It is an arithmetic number, because the mean of its divisors is an integer number (1392736).

Almost surely, 2^5396821 is an apocalyptic number.

It is an amenable number.

5396821 is a deficient number, since it is larger than the sum of its proper divisors (174123).

5396821 is a wasteful number, since it uses less digits than its factorization.

5396821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174122.

The product of its digits is 12960, while the sum is 34.

The square root of 5396821 is about 2323.1058951326. The cubic root of 5396821 is about 175.4066299332.

The spelling of 5396821 in words is "five million, three hundred ninety-six thousand, eight hundred twenty-one".