5286421 has 4 divisors (see below), whose sum is σ = 6041632. Its totient is φ = 4531212.

The previous prime is 5286409. The next prime is 5286431. The reversal of 5286421 is 1246825.

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 not a de Polignac number, because 5286421 - 2⁷ = 5286293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5286421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5286431) 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, 377595 + ... + 377608.

It is an arithmetic number, because the mean of its divisors is an integer number (1510408).

Almost surely, 2^5286421 is an apocalyptic number.

It is an amenable number.

5286421 is a deficient number, since it is larger than the sum of its proper divisors (755211).

5286421 is an equidigital number, since it uses as much as digits as its factorization.

5286421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755210.

The product of its digits is 3840, while the sum is 28.

The square root of 5286421 is about 2299.2218248790. The cubic root of 5286421 is about 174.2023123498.

The spelling of 5286421 in words is "five million, two hundred eighty-six thousand, four hundred twenty-one".