5386421 has 2 divisors, whose sum is σ = 5386422. Its totient is φ = 5386420.

The previous prime is 5386387. The next prime is 5386471. The reversal of 5386421 is 1246835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3724900 + 1661521 = 1930^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 5386421 - 2⁶ = 5386357 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 5⁷ + 3¹⁴ + 8 + 6 + 4⁵ + 2¹⁹ + 1 .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5386471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2693210 + 2693211.

It is an arithmetic number, because the mean of its divisors is an integer number (2693211).

Almost surely, 2^5386421 is an apocalyptic number.

It is an amenable number.

5386421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5386421 is an equidigital number, since it uses as much as digits as its factorization.

5386421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 5386421 is about 2320.8664330375. The cubic root of 5386421 is about 175.2938844233.

The spelling of 5386421 in words is "five million, three hundred eighty-six thousand, four hundred twenty-one".