3421287 has 12 divisors (see below), whose sum is σ = 4994080. Its totient is φ = 2256768.

The previous prime is 3421241. The next prime is 3421321. The reversal of 3421287 is 7821243.

3421287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3421287 - 2¹¹ = 3419239 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 3421287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1087 + ... + 2832.

Almost surely, 2^3421287 is an apocalyptic number.

3421287 is a deficient number, since it is larger than the sum of its proper divisors (1572793).

3421287 is a wasteful number, since it uses less digits than its factorization.

3421287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022 (or 4019 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 3421287 is about 1849.6721331090. The cubic root of 3421287 is about 150.6826221345.

It can be divided in two parts, 34 and 21287, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 3421287 in words is "three million, four hundred twenty-one thousand, two hundred eighty-seven".