1042871 has 4 divisors (see below), whose sum is σ = 1076544. Its totient is φ = 1009200.

The previous prime is 1042861. The next prime is 1042897. The reversal of 1042871 is 1782401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042871 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 (1042861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16790 + ... + 16851.

It is an arithmetic number, because the mean of its divisors is an integer number (269136).

2^1042871 is an apocalyptic number.

1042871 is a deficient number, since it is larger than the sum of its proper divisors (33673).

1042871 is an equidigital number, since it uses as much as digits as its factorization.

1042871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33672.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1042871 is about 1021.2105561538. The cubic root of 1042871 is about 101.4090848727.

The spelling of 1042871 in words is "one million, forty-two thousand, eight hundred seventy-one".