1428587 has 2 divisors, whose sum is σ = 1428588. Its totient is φ = 1428586.

The previous prime is 1428571. The next prime is 1428593. The reversal of 1428587 is 7858241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1428587 - 2⁴ = 1428571 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 1 + 4¹⁰ + 2⁷ + 8² + 5² + 8⁶ + 7⁶ .

It is not a weakly prime, because it can be changed into another prime (1428787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714293 + 714294.

It is an arithmetic number, because the mean of its divisors is an integer number (714294).

2^1428587 is an apocalyptic number.

1428587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428587 is an equidigital number, since it uses as much as digits as its factorization.

1428587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 35.

The square root of 1428587 is about 1195.2351233126. The cubic root of 1428587 is about 112.6251972463.

The spelling of 1428587 in words is "one million, four hundred twenty-eight thousand, five hundred eighty-seven".