1234287 has 6 divisors (see below), whose sum is σ = 1782872. Its totient is φ = 822852.

The previous prime is 1234271. The next prime is 1234309. The reversal of 1234287 is 7824321.

It is not a de Polignac number, because 1234287 - 2⁴ = 1234271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1234287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234237) 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 in 5 ways as a sum of consecutive naturals, for example, 68563 + ... + 68580.

2^1234287 is an apocalyptic number.

1234287 is a deficient number, since it is larger than the sum of its proper divisors (548585).

1234287 is a wasteful number, since it uses less digits than its factorization.

1234287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137149 (or 137146 counting only the distinct ones).

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

The square root of 1234287 is about 1110.9846983645. The cubic root of 1234287 is about 107.2684614576.

It can be divided in two parts, 1234 and 287, that added together give a square (1521 = 39²).

The spelling of 1234287 in words is "one million, two hundred thirty-four thousand, two hundred eighty-seven".