5213921 has 8 divisors (see below), whose sum is σ = 5452800. Its totient is φ = 4979520.

The previous prime is 5213909. The next prime is 5213927. The reversal of 5213921 is 1293125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5213921 - 2¹⁴ = 5197537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5213927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385 + ... + 3513.

It is an arithmetic number, because the mean of its divisors is an integer number (681600).

Almost surely, 2^5213921 is an apocalyptic number.

It is an amenable number.

5213921 is a deficient number, since it is larger than the sum of its proper divisors (238879).

5213921 is a wasteful number, since it uses less digits than its factorization.

5213921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239.

The product of its digits is 540, while the sum is 23.

The square root of 5213921 is about 2283.4011912058. The cubic root of 5213921 is about 173.4022847801.

The spelling of 5213921 in words is "five million, two hundred thirteen thousand, nine hundred twenty-one".