1042687 has 2 divisors, whose sum is σ = 1042688. Its totient is φ = 1042686.

The previous prime is 1042681. The next prime is 1042693. The reversal of 1042687 is 7862401.

It is a balanced prime because it is at equal distance from previous prime (1042681) and next prime (1042693).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042687 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521343 + 521344.

It is an arithmetic number, because the mean of its divisors is an integer number (521344).

2^1042687 is an apocalyptic number.

1042687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042687 is an equidigital number, since it uses as much as digits as its factorization.

1042687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1042687 is about 1021.1204630209. The cubic root of 1042687 is about 101.4031204504.

The spelling of 1042687 in words is "one million, forty-two thousand, six hundred eighty-seven".