1047287 has 4 divisors (see below), whose sum is σ = 1051296. Its totient is φ = 1043280.

The previous prime is 1047283. The next prime is 1047289. The reversal of 1047287 is 7827401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7827401 = 197 ⋅39733.

It is a cyclic number.

It is not a de Polignac number, because 1047287 - 2² = 1047283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583 + ... + 2144.

It is an arithmetic number, because the mean of its divisors is an integer number (262824).

2^1047287 is an apocalyptic number.

1047287 is a deficient number, since it is larger than the sum of its proper divisors (4009).

1047287 is an equidigital number, since it uses as much as digits as its factorization.

1047287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 1047287 is about 1023.3704119233. The cubic root of 1047287 is about 101.5520210254.

The spelling of 1047287 in words is "one million, forty-seven thousand, two hundred eighty-seven".