5387321 has 2 divisors, whose sum is σ = 5387322. Its totient is φ = 5387320.

The previous prime is 5387303. The next prime is 5387329. The reversal of 5387321 is 1237835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2941225 + 2446096 = 1715^2 + 1564^2 .

It is a cyclic number.

It is not a de Polignac number, because 5387321 - 2⁶ = 5387257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5387329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2693660 + 2693661.

It is an arithmetic number, because the mean of its divisors is an integer number (2693661).

Almost surely, 2^5387321 is an apocalyptic number.

It is an amenable number.

5387321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5387321 is an equidigital number, since it uses as much as digits as its factorization.

5387321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 5387321 is about 2321.0603180443. The cubic root of 5387321 is about 175.3036469793.

The spelling of 5387321 in words is "five million, three hundred eighty-seven thousand, three hundred twenty-one".