3428287 has 2 divisors, whose sum is σ = 3428288. Its totient is φ = 3428286.

The previous prime is 3428281. The next prime is 3428329. The reversal of 3428287 is 7828243.

It is a weak prime.

It is an emirp because it is prime and its reverse (7828243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3428287 - 2³ = 3428279 is a prime.

3428287 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3428281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1714143 + 1714144.

It is an arithmetic number, because the mean of its divisors is an integer number (1714144).

Almost surely, 2^3428287 is an apocalyptic number.

3428287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3428287 is an equidigital number, since it uses as much as digits as its factorization.

3428287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 34.

The square root of 3428287 is about 1851.5633934597. The cubic root of 3428287 is about 150.7853183623.

The spelling of 3428287 in words is "three million, four hundred twenty-eight thousand, two hundred eighty-seven".