5421287 has 2 divisors, whose sum is σ = 5421288. Its totient is φ = 5421286.

The previous prime is 5421263. The next prime is 5421323. The reversal of 5421287 is 7821245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5421287 - 2²² = 1226983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5421587) 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 as a sum of consecutive naturals, namely, 2710643 + 2710644.

It is an arithmetic number, because the mean of its divisors is an integer number (2710644).

Almost surely, 2^5421287 is an apocalyptic number.

5421287 is a deficient number, since it is larger than the sum of its proper divisors (1).

5421287 is an equidigital number, since it uses as much as digits as its factorization.

5421287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 29.

The square root of 5421287 is about 2328.3657358757. The cubic root of 5421287 is about 175.6712937573.

The spelling of 5421287 in words is "five million, four hundred twenty-one thousand, two hundred eighty-seven".