1042891 has 8 divisors (see below), whose sum is σ = 1108800. Its totient is φ = 978120.

The previous prime is 1042861. The next prime is 1042897. The reversal of 1042891 is 1982401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042891 - 2¹⁷ = 911819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2280 + ... + 2698.

It is an arithmetic number, because the mean of its divisors is an integer number (138600).

2^1042891 is an apocalyptic number.

1042891 is a deficient number, since it is larger than the sum of its proper divisors (65909).

1042891 is a wasteful number, since it uses less digits than its factorization.

1042891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1042891 is about 1021.2203484067. The cubic root of 1042891 is about 101.4097331372.

The spelling of 1042891 in words is "one million, forty-two thousand, eight hundred ninety-one".